This is DUE: Come prepared to share your findings with your group.

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "This is DUE: Come prepared to share your findings with your group."

Transcription

1 Biology 160 NAME: Reading Guide 11: Population Dynamics, Humans, Part I This is DUE: Come prepared to share your findings with your group. *As before, please turn in only the Critical Thinking questions on a separate sheet of paper. Critical Thinking questions: Section 1: 4, 17, 33, 34, 43EC, 44; Section 2: 4, 7, 36, 39, 44, 45, 47, 54, 55 What you ll learn in this reading guide: Observations in the natural world that explain the Theory of Natural Selection: o Overproduction with competition o Individual variation Evidence for overproduction with competition in humans through population growth and apply it to malaria resistance Evidence for individual variation in humans through sexual recombination and apply it to malaria resistance ** Fill this reading guide out as you are reading the chapters. This will help you to pull out the important information that will help us to understand how human resistance to malaria occurs. Readings: Essential Biology, 4 th or 5 th Ed. (Simon, Reece, & Dickey) Ch 13, pg ; ; (How Populations Evolve) Ch 19, pg (Human Population Growth) Ch 8, pg (Meiosis) While reading these chapters, constantly ask yourself, How is this information helping me to understand how human resistance to malaria occurs? Section 1 Chapter 13, pg ; ; Now that you ve seen evolution through natural selection in action during the development of HIV drug resistance, let s look more closely at the historical development of this idea and how it works in other organisms. 1. What is the basic idea of natural selection? 2. What is the result of natural selection? 3. What is one way of defining evolution according to the text? 4. Critical Thinking: So does that mean that evolution can happen in a single individual? Explain your answer.

2 5. Summarize the idea of fixed species and its history. 6. Summarize Lamarck s ideas about evolution. 7. What ship was Darwin on and when did it leave Great Britain? 8. Summarize how Charles Lyell s book The Principles of Geology influenced Darwin s thinking. 9. Who is Alfred Wallace? 10. Summarize and know the two main points that Darwin developed in his book On the Origin of Species. A) First main point: B) Second main point: 11. Make sure you can answer the Checkpoint questions. If not, write your questions here: We ll come back to the Evidence for Evolution when we study different species in our next unit. Right now we want to focus in on populations of the same species (a population of HIV in one individual taking anti-hiv drugs, a population of humans in areas with a high incidence of malaria, a population of insects in a field sprayed with pesticide, etc ). 12. Overproduction with competition is one key observation made by Darwin. Explain what this is and what happens to most of the offspring.

3 13. Individual variation in a population is another key observation made by Darwin. Explain whether these traits must be heritable or not. 14. Define natural selection. 15. What are three key points about natural selection made by the text? A) B) C) 16. Describe Figure 13.14, the evolution of pesticide resistance: 17. Critical Thinking: Is the gene conferring resistance to the pesticide a response to the pesticide or was it already present in the insect population? 18. Make sure you can answer the Checkpoint questions. If not, write your questions here: 19. Define the modern synthesis.

4 20. Describe what a population is: 21. What is the smallest biological unit that can evolve? 22. Look up the term allele and write the definition here: 23. What is a gene pool? 24. According to the text, when is evolution occurring on its smallest scale? 25. Give examples of the types of individual variations that A) we can see and B) we can measure with biochemistry. 26. Think Back: What is the difference between genotype and phenotype? 27. Is all variation in a population heritable? Explain why. 28. Look up the term locus and write the definition here: 29. What are two sources of genetic variation? 30. What are the possible effects of a random mutation? 31. How do random mutations affect the evolution of bacteria? Of plants and animals? 32. What process do plants and animals depend mostly upon for genetic variation? 33. Critical Thinking: a) The processes that generate genetic variation are CIRCLE ONE: RANDOM NOT RANDOM b) The process of natural selection is CIRCLE ONE: RANDOM NOT RANDOM

5 34. Critical Thinking: How can this information help to explain how malaria resistance in a population of humans can occur? In your answer specifically refer to Darwin s two key observations: 1) Overproduction with competition 2) Individual variation **We will continue reading the rest of this chapter once we have learned about genetic variation and inheritance. Chapter 19, pg Here we ll look at evidence for how a human population can gain resistance to malaria according to Darwin s first observation that led to his theory of natural selection: Overproduction with competition 35. What population growth model does human population growth look like? 36. According to Figure how large was the human population in 1600: 1800: 1900: 1950: current population: future projection for 2050: 37. What are some of the factors that allowed the human population to grow so rapidly? 38. What is age structure helpful for? 39. Describe how age structure is used to predict the future needs of an aging US population. 40. What are some of the predicted problems of such a high human population growth rate? 41. What is an ecological footprint?

6 42. Discuss why US population has such an enormous ecological deficit. 43. Extra credit: Search the web for site where you can calculate your ecological footprint. Write a two sentence review of the site and provide its web address. Turn this in with your Critical Thinking questions. 44. Critical Thinking: How has this information about human population growth provided evidence for how malaria resistance might occur in a human population? Section 2 Chapter 8, pg Now we ll look at evidence for how a human population can gain resistance to malaria according to Darwin s second observation for his theory of natural selection: individual variation. 1. What cellular processes does sexual reproduction depend upon? 2. What is a somatic cell and how many chromosomes does a human somatic cell have? 3. What is a karyotype? 4. Critical Thinking: Why do you have to break open a somatic cell during metaphase of mitosis to obtain a karyotype? 5. What are homologous chromosomes? Redraw and label the upper left drawing of Figure 8.11 to help you remember their structure. 6. How many pairs of homologous chromosomes do humans have? 7. Critical Thinking: If a cell were in G1 phase of the cell cycle, what would the chromosomes look like? Would they have sister chromatids? Why? 8. What are the sex chromosomes?

7 9. What are the sex chromosomes in a human male? 10. What are the sex chromosomes in a human female? 11. What are autosomes? 12. How many autosomes does a human somatic cell have? 13. What is a life cycle? 14. What does diploid mean and how are the total number of chromosomes represented? 15. What are gametes? 16. What does haploid mean? 17. How is the haploid number represented and what is the haploid number for humans? 18. Why do sexually reproducing organisms need to produce haploid cells? 19. What is fertilization? 20. What is a zygote? 21. The zygote is (CIRCLE ONE) HAPLOID DIPLOID 22. What cell division process did every cell in your body use to develop from the zygote to produce diploid cells? 23. What cellular process is used to produce haploid cells? 24. Redraw Figure 8.13 to help you remember how the chromosomes are divided up during the formation of gametes. 25. What are the two special features of meiosis? What happens during these features? A) B)

8 26. What is the difference between homologous chromosomes and sister chromatids? 27. Vocabulary to know for understanding meiosis: Diploid Chromatin Microtubules (pg 69) Centrioles (glossary) Centrosomes Mitotic Spindle Nuclear envelope Plasma membrane Chromosome Sister chromatids Centromere Homologous chromosomes Tetrad Sites of crossing over Haploid Daughter chromosomes Cleavage furrow Cell plate

9 28. Draw a picture of each stage of meiosis in order to understand how DNA is divided into four haploid daughter cells. Also describe in words what changes are happening to the chromosomes and nucleus and to the spindle and cytoplasm during each phase. Remind yourself here about the difference between homologous chromosomes and sister chromatids. Stage of Meiosis Interphase Draw a picture of a cell at this stage Changes to the Chromosomes and the Nucleus Changes to the Spindle and the Cytoplasm Prophase I Metaphase I Meiosis I Anaphase I Telophase I and Cytokinesis

10 Stage of Meiosis Prophase II Draw a picture of a cell at this stage Changes to the Chromosomes and the Nucleus Changes to the Spindle and the Cytoplasm Metaphase II Meiosis II Anaphase II Telophase II and Cytokinesis 29. What separates during meiosis I? 30. What separates during meiosis II? 31. Make sure you can answer the Checkpoint questions. If not, write your questions here:

11 32. Redraw Figure 8.15 to help you understand how mitosis and meiosis compare. The Origins of Genetic Variation 33. In Figure 8.16 do Possibility 1 and Possibility 2 happen by (CIRCLE ONE) RANDOM CHANCE or by a SPECIFIC CELLULAR INSTRUCTION? 34. According to Figure 8.16, what determines which chromosomes will be packaged together in the haploid gametes? 35. Describe what happens during the independent assortment of chromosomes. 36. Critical Thinking: How does the independent assortment of chromosomes contribute to genetic variability in a population?

12 37. How many possible human chromosome combinations are there? 38. What is random fertilization? 39. Critical Thinking: How does random fertilization contribute to the genetic variability in a population? 40. What is crossing over? 41. Redraw Figure 8.18 to help you learn about crossing over, making sure to understand the following terms Tetrad Chiasma Recombinant Chromosomes 42. In what phase does crossing over occur during meiosis? 43. Can multiple crossing over events happen in the same homologous pair? 44. Critical Thinking: How does crossing over contribute to the genetic variability in a population? 45. Critical Thinking: Mutations in the gametes of the parents also contribute to genetic variation. According to current research published by Roach et al, (2010), they found that a child contains approximately 60 independent mutations that are not found in either parent! This is called the intergenerational mutation rate. These mutations (or genetic variations) occurred during the formation of the gametes during meiosis. How does the intergenerational mutation rate contribute to the genetic variability in a population?

13 46. Think Back: Review Figures and 3.23 to understand how mutations in a gene can affect its protein product. What type of mutation (silent, missense, nonsense, insertion, deletion) is the sickle cell mutation? 47. Critical Thinking: What do you think would happen if one of these intergenerational mutations happened in a gene and caused one of the following types of mutations: a) if it were a silent mutation b) if it were a missense mutation c) if it were a nonsense mutation d) if it were an insertion or deletion mutation 48. What is nondisjunction? 49. During meiosis, when can nondisjunction occur? 50. What are the results of nondisjunction in both the gametes produced and the fertilized zygote? 51. Describe what trisomy 21 and Down syndrome are. 52. How does the age of the mother correlate with the incidence of Down syndrome? 53. Copy down Table 8.1 to help you understand what results from sex chromosome nondisjunction. 54. Critical Thinking: The Advantages of Sex a) What are some advantages and disadvantages to reproducing asexually? b) What are some of the hypotheses as to why all animals reproduce sexually? 55. Critical Thinking: How has this information about genetic variation in sexually reproducing organisms provided evidence for how malaria resistance might occur in a human population?

biology Slide 1 of 35 End Show Copyright Pearson Prentice Hall

biology Slide 1 of 35 End Show Copyright Pearson Prentice Hall biology 1 of 35 Why do you look a little like your mom and your dad? Why do you look a little like your grandma but your brother or sister looks a little like your grandpa? How is the way you look and

More information

The Cellular Basis of Inheritance

The Cellular Basis of Inheritance CHAPTER 9 The Cellular Basis of Inheritance Summary of Key Concepts Concept 9.1 All cells come from cells. (pp. 180 181) Cell reproduction is an important process. Three functions of cell reproduction

More information

Meiosis. The form of cell division by which gametes, with half the regular number of chromosomes, are produced.

Meiosis. The form of cell division by which gametes, with half the regular number of chromosomes, are produced. MEIOSIS Meiosis The form of cell division by which gametes, with half the regular number of chromosomes, are produced. diploid (2n) haploid (n) (complete set of chromosomes) (half the regular number of

More information

Chapter 10.2 Notes. Genes don t exist free in the nucleus but lined up on a. In the body cells of animals and most plants, chromosomes occur in

Chapter 10.2 Notes. Genes don t exist free in the nucleus but lined up on a. In the body cells of animals and most plants, chromosomes occur in Chapter 10.2 Notes NAME Honors Biology Organisms have tens of thousands of genes that determine individual traits Genes don t exist free in the nucleus but lined up on a Diploid and Haploid Cells In the

More information

Cell Division. the formation of new cells. 5/19/14 lev 1cell division.ppt 1

Cell Division. the formation of new cells. 5/19/14 lev 1cell division.ppt 1 Cell Division the formation of new cells 5/19/14 lev 1cell division.ppt 1 1. Bacteria divide in a simple form of reproduction called Binary Fission.! CHROMOSOME A. Bacterium - the single circular chromosome

More information

Lesson Overview Meiosis

Lesson Overview Meiosis 11.4 THINK ABOUT IT As geneticists in the early 1900s applied Mendel s laws, they wondered where genes might be located. They expected genes to be carried on structures inside the cell, but which structures?

More information

Cell Division: the process of copying and dividing entire cells The cell grows, prepares for division, and then divides to form new daughter cells.

Cell Division: the process of copying and dividing entire cells The cell grows, prepares for division, and then divides to form new daughter cells. Mitosis & Meiosis SC.912.L.16.17 Compare and contrast mitosis and meiosis and relate to the processes of sexual and asexual reproduction and their consequences for genetic variation. 1. Students will describe

More information

Mitosis & Meiosis. PPT Questions. 4. Why must each new cell get a complete copy of the original cell s DNA?

Mitosis & Meiosis. PPT Questions. 4. Why must each new cell get a complete copy of the original cell s DNA? 1. From where do new cells arise? Mitosis & Meiosis PPT Questions 2. Why does the body constantly make new cells? 3. Is cell division the same in all cells? Explain. 4. Why must each new cell get a complete

More information

Sexual Reproduction. The two parent cells needed for sexual reproduction are called gametes. They are formed during a process known as meiosis.

Sexual Reproduction. The two parent cells needed for sexual reproduction are called gametes. They are formed during a process known as meiosis. Sexual Reproduction Recall that asexual reproduction involves only one parent cell. This parent cell divides to produce two daughter cells that are genetically identical to the parent. Sexual reproduction,

More information

Meiosis. Two distinct divisions, called meiosis I and meiosis II

Meiosis. Two distinct divisions, called meiosis I and meiosis II Meiosis A process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes to form gametes, or sex cells Two distinct divisions, called meiosis I and

More information

11-4 Meiosis Meiosis. Slide 1 of 35. Copyright Pearson Prentice Hall

11-4 Meiosis Meiosis. Slide 1 of 35. Copyright Pearson Prentice Hall 11-4 Meiosis 1 of 35 Each organism must inherit a single copy of every gene from each of its parents. Gametes are formed by a process that separates the two sets of genes so that each gamete ends up with

More information

Meiosis and Sexual Life Cycles

Meiosis and Sexual Life Cycles Chapter 13 Meiosis and Sexual Life Cycles PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from

More information

Meiosis and Sexual Life Cycles

Meiosis and Sexual Life Cycles LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 13 Meiosis and Sexual Life Cycles

More information

Meiosis and Sexual Life Cycles

Meiosis and Sexual Life Cycles CAMPBELL BIOLOGY IN FOCUS URRY CAIN WASSERMAN MINORSKY REECE 10 Meiosis and Sexual Life Cycles Lecture Presentations by Kathleen Fitzpatrick and Nicole Tunbridge, Simon Fraser University SECOND EDITION

More information

CELL GROWTH AND DIVISION. Chapter 10

CELL GROWTH AND DIVISION. Chapter 10 CELL GROWTH AND DIVISION Chapter 10 Cell division = The formation of 2 daughter cells from a single parent cell Increases ratio of surface area to volume for each cell Allows for more efficient exchange

More information

Sexual Reproduction and Genetics

Sexual Reproduction and Genetics 10 Sexual Reproduction and Genetics section 1 Meiosis Before You Read Think about the traits that make people unique. Some people are tall, while others are short. People can have brown, blue, or green

More information

Cell Reproduction Review

Cell Reproduction Review Name Date Period Cell Reproduction Review Explain what is occurring in each part of the cell cycle --- G 0, G1, S, G2, and M. 1 CELL DIVISION Label all parts of each cell in the cell cycle and explain

More information

Meiosis and Sexual Life Cycles

Meiosis and Sexual Life Cycles Chapter 13 Meiosis and Sexual Life Cycles PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from

More information

Mitosis and. Meiosis. Presented by Kesler Science

Mitosis and. Meiosis. Presented by Kesler Science Mitosis and Meiosis Presented by Kesler Science Essential Questions: 1. What are mitosis and meiosis? 2. What occurs at different phases in cell division? 3. How are mitosis and meiosis similar and different?

More information

Sexual reproduction & Meiosis

Sexual reproduction & Meiosis Sexual reproduction & Meiosis Sexual Reproduction When two parents contribute DNA to the offspring The offspring are the result of fertilization the unification of two gametes (sperm & egg) Results in

More information

Meiosis & Sexual Reproduction

Meiosis & Sexual Reproduction Meiosis & Sexual Reproduction 2007-2008 Turn in warm ups to basket! Prepare for your test! Get out your mitosis/meiosis foldable After the test: New vocabulary! 2/23/17 Draw and label the parts of the

More information

Bell Ringer 02/02/15. Match the stages of mitosis to their descriptions and pictures.

Bell Ringer 02/02/15. Match the stages of mitosis to their descriptions and pictures. Match the stages of mitosis to their descriptions and pictures. 1. Nuclear membrane disappears and chromosomes condense 2. Nuclear membrane reappears and cells begin to fully separate Bell Ringer 02/02/15

More information

Overview. Overview: Variations on a Theme. Offspring acquire genes from parents by inheriting chromosomes. Inheritance of Genes

Overview. Overview: Variations on a Theme. Offspring acquire genes from parents by inheriting chromosomes. Inheritance of Genes Chapter 13 Meiosis and Sexual Life Cycles Overview I. Cell Types II. Meiosis I. Meiosis I II. Meiosis II III. Genetic Variation IV. Reproduction Overview: Variations on a Theme Figure 13.1 Living organisms

More information

Name Class Date. Term Definition How I m Going to Remember the Meaning

Name Class Date. Term Definition How I m Going to Remember the Meaning 11.4 Meiosis Lesson Objectives Contrast the number of chromosomes in body cells and in gametes. Summarize the events of meiosis. Contrast meiosis and mitosis. Describe how alleles from different genes

More information

MEIOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU

MEIOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU MEIOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU Meiosis is a special type of cell division necessary for sexual reproduction in eukaryotes such as animals, plants and fungi The number of sets of chromosomes

More information

Anaphase, Telophase. Animal cells divide their cytoplasm by forming? Cleavage furrow. Bacteria, Paramecium, Amoeba, etc. reproduce by...

Anaphase, Telophase. Animal cells divide their cytoplasm by forming? Cleavage furrow. Bacteria, Paramecium, Amoeba, etc. reproduce by... The 4 phases of mitosis Animal cells divide their cytoplasm by forming? Bacteria, Paramecium, Amoeba, etc. reproduce by... Cell which after division is identical to the original is called a Prophase, Metaphase,

More information

THE CELL CYCLE & MITOSIS. Asexual Reproduction: Production of genetically identical offspring from a single parent.

THE CELL CYCLE & MITOSIS. Asexual Reproduction: Production of genetically identical offspring from a single parent. THE CELL CYCLE & MITOSIS Asexual Reproduction: Production of genetically identical offspring from a single parent. Sexual Reproduction: The fusion of two separate parent cells that produce offspring with

More information

6-10 Sexual reproduction requires special cells (gametes) made by meiosis.

6-10 Sexual reproduction requires special cells (gametes) made by meiosis. Do Now Answer the following questions: For every cell undergoing mitosis, how many cells are created? For a cell with 6 chromosomes, how many chromosomes are in the daughter cells? Why are daughter cells

More information

LECTURE 10A: MEIO S S

LECTURE 10A: MEIO S S LECTURE 10A: MEIOSIS Meiosis Definition INTRODUCTION 1. Meiosis is the production of gametes, which is a reduction division which means a diploid gamete produces haploid gametes - from a full complement

More information

GENERAL SAFETY: Follow your teacher s directions. Do not work in the laboratory without your teacher s supervision.

GENERAL SAFETY: Follow your teacher s directions. Do not work in the laboratory without your teacher s supervision. Name: Bio AP Lab: Cell Division B: Mitosis & Meiosis (Modified from AP Biology Investigative Labs) BACKGROUND: One of the characteristics of living things is the ability to replicate and pass on genetic

More information

Sexual Reproduction and Meiosis. Chapter 11

Sexual Reproduction and Meiosis. Chapter 11 Sexual Reproduction and Meiosis Chapter 11 1 Sexual life cycle Made up of meiosis and fertilization Diploid cells Somatic cells of adults have 2 sets of chromosomes Haploid cells Gametes (egg and sperm)

More information

Name: Test date: Per:

Name: Test date: Per: Name: Test date: Per: Cell Cycle/Protein Synthesis Unit 1 Study Guide Always remember to use your notes/lectures first, then book, then other sources to help you find the right answers. Be as thorough

More information

LAB 8 EUKARYOTIC CELL DIVISION: MITOSIS AND MEIOSIS

LAB 8 EUKARYOTIC CELL DIVISION: MITOSIS AND MEIOSIS LAB 8 EUKARYOTIC CELL DIVISION: MITOSIS AND MEIOSIS Name: Date: INTRODUCTION BINARY FISSION: Prokaryotic cells (bacteria) reproduce asexually by binary fission. Bacterial cells have a single circular chromosome,

More information

BIOLOGY. COLLEGE PHYSICS Chapter 11 MEIOSIS AND SEXUAL REPRODUCTION Chapter # Chapter Title PowerPoint Image Slideshow

BIOLOGY. COLLEGE PHYSICS Chapter 11 MEIOSIS AND SEXUAL REPRODUCTION Chapter # Chapter Title PowerPoint Image Slideshow BIOLOGY COLLEGE PHYSICS Chapter 11 MEIOSIS AND SEXUAL REPRODUCTION Chapter # Chapter Title PowerPoint Image Slideshow CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson 13 Meiosis

More information

Meiosis and Sexual Reproduction Chapter 11. Reproduction Section 1

Meiosis and Sexual Reproduction Chapter 11. Reproduction Section 1 Meiosis and Sexual Reproduction Chapter 11 Reproduction Section 1 Reproduction Key Idea: An individual formed by asexual reproduction is genetically identical to its parent. Asexual Reproduction In asexual

More information

THINK ABOUT IT. Lesson Overview. Meiosis. As geneticists in the early 1900s applied Mendel s laws, they wondered where genes might be located.

THINK ABOUT IT. Lesson Overview. Meiosis. As geneticists in the early 1900s applied Mendel s laws, they wondered where genes might be located. Notes THINK ABOUT IT As geneticists in the early 1900s applied Mendel s laws, they wondered where genes might be located. They expected genes to be carried on structures inside the cell, but which structures?

More information

STUDY UNIT 1 MITOSIS AND MEIOSIS. Klug, Cummings & Spencer Chapter 2. Morphology of eukaryotic metaphase chromosomes. Chromatids

STUDY UNIT 1 MITOSIS AND MEIOSIS. Klug, Cummings & Spencer Chapter 2. Morphology of eukaryotic metaphase chromosomes. Chromatids STUDY UNIT 1 MITOSIS AND MEIOSIS Klug, Cummings & Spencer Chapter 2 Life depends on cell division and reproduction of organisms. Process involves transfer of genetic material. New somatic (body) cells

More information

Typical Life Cycle of Algae and Fungi. 5 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Typical Life Cycle of Algae and Fungi. 5 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Module 3B Meiosis and Sexual Life Cycles In this module, we will examine a second type of cell division used by eukaryotic cells called meiosis. In addition, we will see how the 2 types of eukaryotic cell

More information

Honors Biology Test Chapter 8 Mitosis and Meiosis

Honors Biology Test Chapter 8 Mitosis and Meiosis Honors Biology Test Chapter 8 Mitosis and Meiosis 1. In mitosis, if a parent cell has 16 chromosomes, each daughter cell will have how many chromosomes? a. 64 b. 32 c. 16 d. 8 e. 4 2. Chromatids that are

More information

Cellular Reproduction = Cell Division. Passes on Genes from Cells to Cells Reproduction of Organisms

Cellular Reproduction = Cell Division. Passes on Genes from Cells to Cells Reproduction of Organisms Cellular Reproduction = Cell Division Passes on Genes from Cells to Cells Reproduction of Organisms Genes DNA Chromatin fiber Chromosomes Fig. 9.6 Genes, the segments of DNA, are part of chromatin fiber

More information

Chapter 11 Meiosis and Sexual Reproduction

Chapter 11 Meiosis and Sexual Reproduction Chapter 11 Meiosis and Sexual S Section 1: S Gamete: Haploid reproductive cell that unites with another haploid reproductive cell to form a zygote. S Zygote: The cell that results from the fusion of gametes

More information

Sexual life cycle. Sexual life cycle. Fertilization. Sexual Reproduction and Meiosis. Made up of meiosis and fertilization Diploid cells (2n)

Sexual life cycle. Sexual life cycle. Fertilization. Sexual Reproduction and Meiosis. Made up of meiosis and fertilization Diploid cells (2n) Sexual life cycle Sexual Reproduction and Meiosis Made up of meiosis and fertilization Diploid cells (2n) Chapter 11 Somatic cells of adults have 2 sets of Haploid cells (n) Gametes have only 1 set of

More information

Chapter 11: The Continuity of Life: Cellular Reproduction. What is Cellular Reproduction?

Chapter 11: The Continuity of Life: Cellular Reproduction. What is Cellular Reproduction? Chapter 11: The Continuity of Life: Cellular Reproduction What is Cellular Reproduction? Answer: The division of a parent cell into two daughter cells Requirements of Each Daughter Cell: 1) Necessary genomic

More information

Meiosis and Sexual Reproduction. Chapter 9

Meiosis and Sexual Reproduction. Chapter 9 Meiosis and Sexual Reproduction Chapter 9 9.1 Genes and Alleles Genes Sequences of DNA that encode heritable traits Alleles Slightly different forms of the same gene Each specifies a different version

More information

MEIOSIS LAB INTRODUCTION PART I: SIMULATION OF MEIOSIS EVOLUTION. Activity #9

MEIOSIS LAB INTRODUCTION PART I: SIMULATION OF MEIOSIS EVOLUTION. Activity #9 AP BIOLOGY EVOLUTION Unit 1 Part 7 Chapter 13 Activity #9 NAME DATE PERIOD MEIOSIS LAB INTRODUCTION Meiosis involves two successive nuclear divisions that produce four haploid cells. Meiosis I is the reduction

More information

Chapter 11: The Continuity of Life: Cellular Reproduction

Chapter 11: The Continuity of Life: Cellular Reproduction Chapter 11: The Continuity of Life: Cellular Reproduction Chapter 11: Cellular Reproduction What is Cellular Reproduction? Answer: The division of a parent cell into two daughter cells Requirements of

More information

Meiosis B-4.5. Summarize the characteristics of the phases of meiosis I and meiosis II.

Meiosis B-4.5. Summarize the characteristics of the phases of meiosis I and meiosis II. Meiosis B-4.5 Summarize the characteristics of the phases of meiosis I and meiosis II. Key Concepts Daughter cells Diploid Haploid Zygote Gamete Meiosis I vs. Meiosis II What You Already Know This concept

More information

Mitosis. Meiosis MP3. Why do cells divide? Why Do Cells Need To Divide? Vocab List Chapter 10 & 11. What has to happen before a cell divides? divides?

Mitosis. Meiosis MP3. Why do cells divide? Why Do Cells Need To Divide? Vocab List Chapter 10 & 11. What has to happen before a cell divides? divides? MP3 Vocab List Chapter 10 & 11 Mitosis Anaphase Mitosis Cell Cycle Telophase Cytokinesis Cell Division Metaphase 4 Daughter Cells Prophase Meiosis Diploid Somatic Cells Interphase Haploid Parent Cell Gametes

More information

SEXUAL REPRODUCTION & MEIOSIS

SEXUAL REPRODUCTION & MEIOSIS SEXUAL REPRODUCTION & MEIOSIS Living organisms are distinguished by their ability to reproduce their own kind. Offspring resemble their parents more than they do less closely related individuals of the

More information

CELL CYCLE, MITOSIS AND MEIOSIS NOTES

CELL CYCLE, MITOSIS AND MEIOSIS NOTES CELL CYCLE, MITOSIS AND MEIOSIS NOTES DNA - Genetic information is stored in the DNA strand in the form of genes. DNA stands for deoxyribose nucleic acid Genes located on the DNA strand 2 Types of DNA

More information

Meiosis * OpenStax. This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0.

Meiosis * OpenStax. This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0. OpenStax-CNX module: m45466 1 Meiosis * OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 By the end of this section, you will be able to: Abstract

More information

CELL CYCLE UNIT GUIDE- Due January 19, 2016

CELL CYCLE UNIT GUIDE- Due January 19, 2016 CELL CYCLE UNIT GUIDE- Due January 19, 2016 Monday Tuesday Wednesday Thursday Friday January 4- No School 5-Cell Cycle/Mitosis 6-Cell Cycle/ Mitosis 7-Mitosis 8-Meiosis Reading Check Quiz #1 sections 5.1-5.5

More information

MEIOSIS CELL DIVISION Chapter

MEIOSIS CELL DIVISION Chapter Section 6.1: Meiosis MEIOSIS CELL DIVISION Chapter 6.1 6.2 WHAT DETERMINES WHAT YOU LOOK LIKE? Meiosis Animation Meiosis creates 4 genetically different gametes (haploid) Mitosis creates 2 identical daughter

More information

Meiosis. The sexy shuffling machine. LO: Describe the events of meiosis Explain how meiosis creates uniqueness Compare & contrast mitosis & meiosis

Meiosis. The sexy shuffling machine. LO: Describe the events of meiosis Explain how meiosis creates uniqueness Compare & contrast mitosis & meiosis Meiosis The sexy shuffling machine LO: Describe the events of meiosis Explain how meiosis creates uniqueness Compare & contrast mitosis & meiosis http://www.youtube.com/watch?v=kvmb4js99ta Meiosis Intro

More information

2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes

2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes the cell cycle are these cells in? Be sure to hide the Interphase What are the two Chromatids halves of a called? By definition, which cells have ½ the total number of s? Haploid the cell cycle is this

More information

Chapter 13: Meiosis and Sexual Life Cycles

Chapter 13: Meiosis and Sexual Life Cycles Name Period Chapter 13: Meiosis and Sexual Life Cycles Concept 13.10ffÿ'pring acquire genes fi'om parents by inheriting chromosonws 1. Let's begin with a review of several terms that you may already know.

More information

11.4 Meiosis. Vocabulary: Homologous Diploid Haploid Meiosis Crossing-over Tetrad

11.4 Meiosis. Vocabulary: Homologous Diploid Haploid Meiosis Crossing-over Tetrad 11.4 Meiosis Vocabulary: Homologous Diploid Haploid Meiosis Crossing-over Tetrad Key Concept: What happens during the process of meiosis? How is MEIOSIS different than mitosis? Blast from the past What

More information

CH 13 Meiosis & Sexual Life Cycles

CH 13 Meiosis & Sexual Life Cycles CH 13 Meiosis & Sexual Life Cycles AP Biology 2005-2006 Cell division / Asexual reproduction Mitosis produce cells with same information identical daughter cells exact copies clones same amount of DNA

More information

Chapter 8. Cellular Reproduction: Cells from Cells. Lectures by Chris C. Romero, updated by Edward J. Zalisko

Chapter 8. Cellular Reproduction: Cells from Cells. Lectures by Chris C. Romero, updated by Edward J. Zalisko Chapter 8 Cellular Reproduction: Cells from Cells Lectures by Chris C. Romero, updated by Edward J. Zalisko PowerPoint Lectures for Campbell Essential Biology, Fourth Edition Eric Simon, Jane Reece, and

More information

The Cell Cycle. The Cell Cycle

The Cell Cycle. The Cell Cycle The Cell Cycle Cells divide by Mitosis or Meiosis. Mitosis allows the organism to replace cells that have died or aren't working, and is how living things grow. It makes an exact copy of the parent cell.

More information

Name 8 Cell Cycle and Meiosis Test Date Study Guide You must know: The structure of the replicated chromosome. The stages of mitosis.

Name 8 Cell Cycle and Meiosis Test Date Study Guide You must know: The structure of the replicated chromosome. The stages of mitosis. Name 8 Cell Cycle and Meiosis Test Date Study Guide You must know: The structure of the replicated chromosome. The stages of mitosis. The role of kinases and cyclin in the regulation of the cell cycle.

More information

Cell Reproduction Mitosis & Meiosis

Cell Reproduction Mitosis & Meiosis Cell Reproduction Mitosis & Meiosis Outcomes 1. Describe mitosis in detail (460-465) interphase, mitosis and cytokinesis (the cell cycle) explain the importance of maintaining chromosome number through

More information

CELL GROWTH & DIVISION. Preview (Honors)

CELL GROWTH & DIVISION. Preview (Honors) CELL GROWTH & DIVISION Mitosis & Meiosis Preview (Honors) Read: Chapter 10-1 Page 256: Define ALL vocabulary Page 257: #1-10 & 14 Page 282: Define Section 11-4 vocabulary 1 Preview (Academic) Read: Chapter

More information

Human Biology Chapter 13.4: Meiosis and Genetic Variation

Human Biology Chapter 13.4: Meiosis and Genetic Variation OpenStax-CNX module: m58013 1 Human Biology Chapter 13.4: Meiosis and Genetic Variation Willy Cushwa Based on Meiosis by OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons

More information

Chapter 8 The Cellular Basis of Reproduction and Inheritance

Chapter 8 The Cellular Basis of Reproduction and Inheritance Chapter 8 The Cellular Basis of Reproduction and Inheritance PowerPoint Lectures Campbell Biology: Concepts & Connections, Eighth Edition REECE TAYLOR SIMON DICKEY HOGAN Lecture by Edward J. Zalisko Introduction

More information

Sexual and Asexual Reproduction. Cell Reproduction TEST Friday, 11/13

Sexual and Asexual Reproduction. Cell Reproduction TEST Friday, 11/13 Sexual and Asexual Reproduction Cell Reproduction TEST Friday, 11/13 How many chromosomes do humans have? What are Chromosomes? How many chromosomes came from your mom? How many chromosomes came from your

More information

Meiosis, Sexual Reproduction, & Genetic Variability

Meiosis, Sexual Reproduction, & Genetic Variability Meiosis, Sexual Reproduction, & Genetic Variability Teachers Guide NARRATION FOR MEIOSIS, SEXUAL REPRODUCTION, AND GENETIC VARIABILITY Since the members of no species, even California redwoods or giant

More information

Essential Questions. Meiosis. Copyright McGraw-Hill Education

Essential Questions. Meiosis. Copyright McGraw-Hill Education Essential Questions How does the reduction in chromosome number occur during meiosis? What are the stages of meiosis? What is the importance of meiosis in providing genetic variation? Meiosis Vocabulary

More information

Biology, 7e (Campbell) Chapter 13: Meiosis and Sexual Life Cycles

Biology, 7e (Campbell) Chapter 13: Meiosis and Sexual Life Cycles Biology, 7e (Campbell) Chapter 13: Meiosis and Sexual Life Cycles Chapter Questions 1) What is a genome? A) the complete complement of an organism's genes B) a specific sequence of polypeptides within

More information

Science 9 Unit 2 pack: Reproduction

Science 9 Unit 2 pack: Reproduction Science 9 Unit 2 pack: Reproduction Name Ch 4: The Nucleus Ch 5: Mitosis Ch 6: Meiosis Students will develop an understanding of the processes of cell division as they pertain to reproduction. 0 Section

More information

Cell cycle, mitosis & meiosis. Chapter 6

Cell cycle, mitosis & meiosis. Chapter 6 Cell cycle, mitosis & meiosis Chapter 6 Why do cells divide? Asexual reproduction Growth Replacement / repair Cell division: The big picture Two steps Before cells can divide, DNA needs to replicate DNA

More information

The division of a unicellular organism reproduces an entire organism, increasing the population. Here s one amoeba dividing into 2.

The division of a unicellular organism reproduces an entire organism, increasing the population. Here s one amoeba dividing into 2. 1. Cell division functions in 3 things : reproduction, growth, and repair The division of a unicellular organism reproduces an entire organism, increasing the population. Here s one amoeba dividing into

More information

CHAPTER 10 : CELL CYCLE AND CELL DIVISION K C MEENA PGT BIOLOGY KVS

CHAPTER 10 : CELL CYCLE AND CELL DIVISION K C MEENA PGT BIOLOGY KVS CHAPTER 10 : CELL CYCLE AND CELL DIVISION K C MEENA PGT BIOLOGY KVS Cell cycle It is a series of events that takes place in a cell, leading to the formation of two daughter cells from a single mother cell.

More information

Unit 2: Cellular Chemistry, Structure, and Physiology Module 5: Cellular Reproduction

Unit 2: Cellular Chemistry, Structure, and Physiology Module 5: Cellular Reproduction Unit 2: Cellular Chemistry, Structure, and Physiology Module 5: Cellular Reproduction NC Essential Standard: 1.2.2 Analyze how cells grow and reproduce in terms of interphase, mitosis, and cytokinesis

More information

Gametes are the reproductive cells - the egg or the sperm. Gametes.

Gametes are the reproductive cells - the egg or the sperm. Gametes. Meiosis Meiosis is the type of cell division for that produces the cells ( ) which are also known as gametes. Two important characteristics of meiosis is that it reduces the number of chromosomes to half

More information

Meiosis & Sexual Reproduction

Meiosis & Sexual Reproduction Meiosis & Sexual Reproduction 2007-2008 Cell division / Asexual reproduction Mitosis produce cells with same information identical daughter cells exact copies clones same amount of DNA same number of chromosomes

More information

AP Biology Fall Semester Set 1

AP Biology Fall Semester Set 1 1. During which stage does DNA replication occur? A. Prophase B. Metaphase C. Anaphase D. none of these 2. At what phase in the cell cycle does DNA replication occur? A. G1 B. S C. G2 D. M 3. Which of

More information

11/18/2016. Meiosis. Dr. Bertolotti. How is meiosis different from mitosis?

11/18/2016. Meiosis. Dr. Bertolotti. How is meiosis different from mitosis? Meiosis Dr. Bertolotti How is meiosis different from mitosis? 1 3 Types of Cell Division 1. Binary fission- cell division in prokaryotes 2. Cell Cycle (with Mitosis)- cell division in eukaryotes to form

More information

Bellwork. Many organisms reproduce via asexual and sexual reproduction. How would we look if we reproduced mitotically?

Bellwork. Many organisms reproduce via asexual and sexual reproduction. How would we look if we reproduced mitotically? Bellwork Many organisms reproduce via asexual and sexual reproduction. How would we look if we reproduced mitotically? SC.912.L.16.17 Meiosis Functions in Sexual Reproduction Other Standards Addressed:

More information

Cell Division THE MAJOR STEPS OF CELL DIVISION: 10/28/2013. When does DNA replicate? The first step of cell division is DNA replication:

Cell Division THE MAJOR STEPS OF CELL DIVISION: 10/28/2013. When does DNA replicate? The first step of cell division is DNA replication: Cell Division Biology 105 Laboratory 8 THE MAJOR STEPS OF CELL DIVISION: When does DNA replicate? The first step of cell division is DNA replication: This occurs just prior to cell division. Cells need

More information

Biology 067 Section 14 Cell Division. A. Definitions:

Biology 067 Section 14 Cell Division. A. Definitions: Biology 067 Section 14 Cell Division A. Definitions: In a human cell, a nucleus holds all the chromatin that condenses to form chromosomes when cells divide every cell in the body has the same set of chromosomes

More information

Foldable. You need 6 pieces of printer paper. Stagger the pages about 1cm (width of pinky finger) DO NOT make the tabs too large!!!!!

Foldable. You need 6 pieces of printer paper. Stagger the pages about 1cm (width of pinky finger) DO NOT make the tabs too large!!!!! Meiosis Notes Foldable You need 6 pieces of printer paper Stagger the pages about 1cm (width of pinky finger) DO NOT make the tabs too large!!!!! Fold the stack of pages to make the foldable as diagramed

More information

Cellular Growth & Reproduction. Biology 1B Ms. Morris

Cellular Growth & Reproduction. Biology 1B Ms. Morris Cellular Growth & Reproduction Biology 1B Ms. Morris Friday, February 7, 2014 Warm Up: Look around at the other people in the classroom. What types of variation (differences) do you see? What similarities

More information

Cell Division: the process of copying and dividing entire cells The cell grows, prepares for division, and then divides to form new daughter cells.

Cell Division: the process of copying and dividing entire cells The cell grows, prepares for division, and then divides to form new daughter cells. Mitosis & Meiosis SC.912.L.16.17 Compare and contrast mitosis and meiosis and relate to the processes of sexual and asexual reproduction and their consequences for genetic variation. 1. Students will describe

More information

1. The process in which ( ) are produced. 2. Males produce cells and females produce cells through meiosis

1. The process in which ( ) are produced. 2. Males produce cells and females produce cells through meiosis Name: Aim 35: What is Meiosis? Date: I. What is Meiosis? What is Meiosis? Which organisms undergo Meiosis? Where does Meiosis occur? What does Meiosis produce? What is Meiosis also known as? 1. The process

More information

The Cell Cycle & Cell Division

The Cell Cycle & Cell Division The Cell Cycle & Cell Division http://www.nobel.se/medicine/laureates/2001/press.html The Cell Cycle Animated Cycle http://www.cellsalive.com/cell_cycle.htm MITOSIS Mitosis The process of cell division

More information

10.2 The Process of Cell Division

10.2 The Process of Cell Division 10.2 The Process of Cell Division Lesson Objectives Describe the role of chromosomes in cell division. Name the main events of the cell cycle. Describe what happens during the four phases of mitosis. Describe

More information

X-Sheet 3 Cell Division: Mitosis and Meiosis

X-Sheet 3 Cell Division: Mitosis and Meiosis X-Sheet 3 Cell Division: Mitosis and Meiosis 13 Key Concepts In this session we will focus on summarising what you need to know about: Revise Mitosis (Grade 11), the process of meiosis, First Meiotic division,

More information

Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 8 The Cellular Basis of Reproduction and Inheritance

Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 8 The Cellular Basis of Reproduction and Inheritance Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 8 The Cellular Basis of Reproduction and Inheritance 8.1 Multiple-Choice Questions 1) The creation of genetically identical offspring

More information

CLASS XI CHAPTER 10 CELL CYCLE AND CELL DIVISION

CLASS XI CHAPTER 10 CELL CYCLE AND CELL DIVISION CLASS XI CHAPTER 10 CELL CYCLE AND CELL DIVISION Cell cycle It is a series of events that takes place in a cell, leading to the formation of two daughter cells from a single mother cell. Phases of cell

More information

Chapter 13. Meiosis & Sexual Reproduction. AP Biology

Chapter 13. Meiosis & Sexual Reproduction. AP Biology Chapter 13. Meiosis & Sexual Reproduction Cell division / Asexual reproduction Mitosis produce cells with same information identical daughter cells exact copies clones same amount of DNA same number of

More information

Meiosis and Sexual Life Cycles

Meiosis and Sexual Life Cycles Chapter 13 Meiosis and Sexual Life Cycles Lecture Outline Overview: Variations on a Theme Living organisms are distinguished by their ability to reproduce their own kind. Offspring resemble their parents

More information

Mitosis and Genetics Study Guide Answer Key

Mitosis and Genetics Study Guide Answer Key Mitosis and Genetics Study Guide Answer Key 1. Which of the following is true of Interphase? a. It is part of Meiosis b. It occurs before Meiosis c. The cell does normal cell activities during interphase

More information

CHAPTER 12 - THE CELL CYCLE (pgs )

CHAPTER 12 - THE CELL CYCLE (pgs ) CHAPTER 12 - THE CELL CYCLE (pgs. 228-245) CHAPTER SEVEN TARGETS I. Describe the importance of mitosis in single-celled and multi-cellular organisms. II. Explain the organization of DNA molecules and their

More information