What is Mitosis? What is the purpose of Mitosis? Growth Repair Asexual reproduction What is the ultimate result of Mitosis?
|
|
- August Jeffry Nicholson
- 5 years ago
- Views:
Transcription
1 Sexual Reproduction
2 What is Mitosis? What is the purpose of Mitosis? Growth Repair Asexual reproduction What is the ultimate result of Mitosis?
3 Somatic cells Component of body tissue. Example: muscle, bone, skin, nerve, heart and brain. 46 chromosomes or 23 pairs Mitosis Gametes Sex cells; involved in sexual reproduction. Example: sperm cell and egg cell. 23 chromosomes Meiosis Sperm + egg (fertilized egg) = zygote
4
5 We need to produce cells with ½ the amount of chromosomes (23). We do that through Meiosis!
6 Most cells in the body are produced by. Only gametes are produced by. At fertilization, 23 chromosomes are donated by each parent. (total = 46 or 23 pairs). Fertilization results in diploid zygote. Diploid cell; 2n = 46. (n = 23 in humans) Gametes (sperm/ova): Contain 22 autosomes and 1 sex chromosome. Are haploid (haploid number n = 23 in humans).
7 Ploidy refers to the numberofsets of homologous chromosomes in cells haploid one copy of each chromosome designated as n (gametes) diploid two copies (= pair) of each chromosome designated as 2n (somatic cells) Diploid organisms receive one of each type of chromosome from female parent (maternal chromosomes) and one of each type of chromosome from male parent (paternal chromosomes) Homologous Chromosomes - Two chromosomes composing a pair that both carry genes controlling the same inherited characteristics.
8 2n Clone Same genetic information in parent cell and daughter cell. Give me another one just like the other one! 1n Daughter cells different from parent cell and from each other. Daughter cells have ½ the number of chromosomes as somatic cell. Shuffling the genes (Mix it up!)
9 Tetrad: Four sister chromatids or a pair of homologous chromosomes.
10 Meiosis: A process of cell division that produces gametes. Stages of Meiosis I: Diploid Haploid 1.Prophase I Chromosomes become visible Nuclear membrane disappears Crossing-over occurs
11 Crossing Over Homologous chromosomes associate Sister chromatids of homologous chromosomes overlap. Sister chromatids exchange genetic material Increases genetic diversity
12 2. Metaphase I Homologous pairs of chromosomes line up in tetrads at the equator. Independent Assortment- The way a pair of chromosomes line up in metaphase I does not affect how the other pairs line up.
13
14 3. Anaphase I Each homologue (replicated chromosome) moves to an opposite side of the cell. Chromatids do not separate at the centromeres!
15 4. Telophase I Chromosomes gather at the poles as the cytoplasm begins to divide Nuclear membrane reforms Chromosomes uncoil into chromatin 5. Cytokinesis Cytoplasm divides to produce 2 haploid cells. **No replication of DNA between Meiosis I and Meiosis II!
16 Meiosis: A process of cell division that produces gametes. Stages of Meiosis II: Haploid Haploid 1.Prophase II Chromatin Chromosomes Nuclear membrane disappearing Centrioles begin to form spindle fibers
17 2. Metaphase II Chromosomes line up at the equator in single-file! Centrioles move to poles Spindle fibers attach to centromeres
18 3. Anaphase II Centromeres split Sister chromatids (chromosomes) are pulled to opposite poles
19 4. Telophase II Chromosomes chromatin Nuclear membrane reforms Spindle fibers disappear Cytoplasm begins to divide (pinch) 5. Cytokinesis Cytoplasm divides producing 4 haploid cells.
20
21 Sexual Reproduction = Variety! -Three sources 1) Independent Assortment during meiosis 2 n = in our lab 2 2 = 4 in humans 2 23 = 8 million! is this enough Variety?
22 Dad has 8 million different sperm Mom has 8 million different eggs 8 million x 8 million = 64 trillion!!! babies Is this enough?
23 Crossing over squares the number of outcomes 64 trillion squared = 27 zeros!! Whyisgeneticdiversitya goodthing?
24 What are fraternal twins? Two fertilized eggs What are identical twins? A single zygote that splits in two or three or... C:\Documents and Settings\b714968\Desktop\mitosis meiosis\fertilization.mov
25 Eukaryotic DNA is organized in. have specific places on chromosomes. - carry genes. unit of heredity made of DNA.
Reproduction & Cell Types
Reproduction & Cell Types TYPES OF REPRODUCTION Asexual Relies on MITOSIS All of the parent s DNA goes to the offspring Sexual Relies on MEIOSIS Used to create sex cells TYPES OF CELLS Body Cells Includes
More informationCELL 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 informationCELL DIVISION: MEIOSIS
CELL DIVISION: MEIOSIS How do Organisms Reproduce? Option 1: Asexual Reproduction Can be done by a single organism without the involvement of gametes (sperm or egg) Offspring are clones of the parent,
More informationCell division / Asexual reproduction
Cell division / Asexual reproduction Mitosis produces cells with same information identical daughter cells exact copies clones same amount of DNA same number of chromosomes same genetic information Asexual
More informationChapter 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 informationReview of Terms. Haploid cells (1n) with one copy of each chromosome. Diploid cells (2n) with two copies of each chromosome
Review of Terms Haploid cells (1n) with one copy of each chromosome Diploid cells (2n) with two copies of each chromosome Somatic non-germline cells Gametes sex cells (eggs and sperm) Reductional division
More informationYou have body cells and gametes Body cells are known as somatic cells. Germ cells develop into gametes or sex cells. Germ cells are located in the
MEIOSIS You have body cells and gametes Body cells are known as somatic cells. Germ cells develop into gametes or sex cells. Germ cells are located in the ovaries and testes. Gametes are sex cells: egg
More informationBiology Unit 6 Chromosomes and Mitosis
Biology Unit 6 Chromosomes and Mitosis 6:1 Chromosomes DNA GENES CHROMATIN/CHROMOSOMES CHROMOSOMES/CHROMATIN are made of units called GENES. GENES are made of a compound called deoxyribonucleic acid or
More informationMeiosis. 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 informationKEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions.
5.1 10.1 The Cell Cell Growth Cycle KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. 5.1 10.1 The Cell Cell Growth Cycle Why must cells divide? Growth and Repair -
More informationMEIOSIS 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 informationLesson Overview Meiosis
11.4 Chromosomes strands of DNA and protein contain the genes. genes are located in specific positions on chromosomes. Humans receive a set (23) of chromosomes from each parent. 23 chromosomes from mom
More informationMeiosis. 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 informationSexual 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 informationSCIENCE M E I O S I S
SCIENCE 9 6. 1 - M E I O S I S OBJECTIVES By the end of the lesson you should be able to: Describe the process of meiosis Compare and contrast meiosis and mitosis Explain why meiosis is needed MEIOSIS
More informationCELL REPRODUCTION NOTES
CELL REPRODUCTION NOTES CELL GROWTH AND DIVISION The adult human body produces roughly cells every day. WHY DO CELLS REPRODUCE? So that the organism can and As multicellular organisms grow larger, its
More informationCELL 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 information11-4 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 informationMeiosis. Section 8-3
Meiosis Section 8-3 Meiosis process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell For example, in humans, meiosis produces haploid reproductive
More informationMeiosis 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 informationCell Cycle (mitosis and meiosis) Test Review
Cell Cycle (mitosis and meiosis) Test Review Name: Chapter 10 1. What problems are caused when a cell becomes too large? When a cell becomes too large the cell is strained and has a hard time moving enough
More informationAlmost all human cells contain 46 chromosomes, and are diploid (2n). Q: If a sperm cell has 46 chromosomes (2n) & an egg cell has 46 chromosomes
Almost all human cells contain 46 chromosomes, and are diploid (2n). Q: If a sperm cell has 46 chromosomes (2n) & an egg cell has 46 chromosomes (2n), when they combine during fertilization, how many chromosomes
More informationMeiosis. 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 information9-4 Meiosis Meiosis. Slide 1 of 35
9-4 Meiosis 11-4 Meiosis 1 of 35 11-4 Meiosis 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
More informationCHAPTER 3 VOCABULARY (for now)
3.1 Meiosis CHAPTER 3 VOCABULARY (for now) VOCABULARY WORD VOCABULARY WORD diploid number Independent assortment haploid number gametes homologous chromosomes zygote genetic diversity Crossing over Sexual
More informationMGC New Life Christian Academy
A. Meiosis Main Idea: Meiosis produces haploid gametes. Key Concept: Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual
More informationSEXUAL REPRODUCTION MEIOSIS SPERMATOGENESIS & OOGENESIS 2/6/2011. Asexual Reproduction:
Asexual Reproduction: SEXUAL REPRODUCTON & MEOSS Many single-celled organisms reproduce by splitting, budding, parthenogenesis. Some multicellular organisms can reproduce asexually, produce clones (offspring
More informationChapter 13: Meiosis & Sexual Life Cycles
Chapter 13: Meiosis & Sexual Life Cycles What you must know The difference between asexual and sexual reproduction. The role of meiosis and fertilization in sexually reproducing organisms. The importance
More informationBell 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 informationMEIOSIS LAB INTRODUCTION PART I: MEIOSIS
MEIOSIS LAB INTRODUCTION Meiosis involves two successive nuclear divisions that produce four haploid cells. Meiosis I is the reduction division. It is this first division that reduces the chromosome number
More informationAgenda. 1. Lesson Learning Goals 2. Meiosis 3. Meiosis Bingo
Meiosis SBI 3U Agenda 1. Lesson Learning Goals 2. Meiosis 3. Meiosis Bingo Learning Goals By the end of today s lesson, you will be able: To use proper vocabulary related to this unit, including meiosis,
More informationbiology Slide 1 of 35 End Show Copyright Pearson Prentice Hall
biology 1 of 35 Do Now: Turn in mitosis worksheet Write down your homework http://www.richannel.org/collection s/2013/chromosome#/chromosome -2 http://www.richannel.org/collection s/2013/chromosome#/chromosome
More informationFor a species to survive, it must REPRODUCE! Ch 13 NOTES Meiosis. Genetics Terminology: Homologous chromosomes
For a species to survive, it must REPRODUCE! Ch 13 NOTES Meiosis Genetics Terminology: Autosomes Somatic cell Gamete Karyotype Homologous chromosomes Meiosis Sex chromosomes Diploid Haploid Zygote Synapsis
More informationChapter 13: Meiosis & Sexual Life Cycles
Chapter 13: Meiosis & Sexual Life Cycles What you must know The difference between asexual and sexual reproduction. The role of meiosis and fertilization in sexually reproducing organisms. The importance
More informationWhat is mitosis? -Process in which a cell divides, creating TWO complete Sets of the original cell with the same EXACT genetic Material (DNA)
What is mitosis? -Process in which a cell divides, creating TWO complete Sets of the original cell with the same EXACT genetic Material (DNA) Cell Division Produces CLONES with the same # of chromosomes
More informationHonors 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 informationMEIOSIS. KEY CONCEPT Gametes have half the number of chromosomes that body cells have.
MEIOSIS MEIOSIS KEY CONCEPT Gametes have half the number of chromosomes that body cells have. MEIOSIS : CELL TYPES You have Body cells and Gametes Body cells are also called somatic cells. Germ cells develop
More informationChapter 13: Meiosis and Sexual Life Cycles Overview: Hereditary Similarity and Variation
Chapter 13: Meiosis and Sexual Life Cycles Overview: Hereditary Similarity and Variation Living organisms Are distinguished by their ability to reproduce their own kind Biology, 7 th Edition Neil Campbell
More informationSexual Reproduction Science 9- Mr. Klasz
Sexual Reproduction Science 9- Mr. Klasz Why sexual reproduction? Imagine a world where everyone was IDENTICAL. If we reproduced asexually, that would be our world Boring! Asexual Reproduction vs. Sexual
More information2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands
Human Heredity Chapter 2 Chromosomes, Mitosis, and Meiosis 2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands
More informationAsexual vs. Sexual. Biology 3201 Unit II Reproduction How Reproductive Cells are Produced. two parents offspring is unique
Biology 3201 Unit II Reproduction 14.2 How Reproductive Cells are Produced Asexual vs single parent offspring identical to parent parent passes on ALL its genes results in a clone Sexual two parents offspring
More information11-4 Meiosis Chromosome Number Slide 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 just one set. Chromosome
More informationChapter 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 informationQuestion #1 What must occur in order for Mendel s principles to hold true?
11.4 Question #1 What must occur in order for Mendel s principles to hold true? An organism with two parents must inherit a single copy of every gene from each parent When that organism produces gametes,
More informationMEIOSIS 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 informationChapter 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 informationSEXUAL 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 informationCell Division (Meiosis)
Cell Division (Meiosis) Meiosis The form of cell division by which gametes, with half the number of chromosomes, are produced. Diploid (2n) haploid (n) Meiosis is sexual reproduction. Two divisions (meiosis
More informationChapter 6: Mendel and Meiosis Meiosis Gamete Production Lecture Guide
Chromosomes and Meiosis Specialized cells in the body Chromosomes 2 types: Chapter 6: Mendel and Meiosis Meiosis Gamete Production Lecture Guide (body cells) Makes up your DNA in your body cells passed
More informationMeiosis produces haploid gametes.
Section 1: produces haploid gametes. K What I Know W What I Want to Find Out L What I Learned Essential Questions How does the reduction in chromosome number occur during meiosis? What are the stages of
More information4/6/2014. Chromosome Number
Meiosis 1of 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 just
More informationCHAPTER 6. Chromosomes and Meiosis
CHAPTER 6 Chromosomes and Meiosis CHROMOSOMES DNA (deoxyribonucleic acid) is a long, thin molecule that directs cellular functions and heredity. DNA contains information that is encoded in segments called
More informationAnswers to Review for Unit Test #3: Cellular Reproduction: Mitosis, Meiosis, Karyotypes and Non-disjunction Disorders
Answers to Review for Unit Test #3: Cellular Reproduction: Mitosis, Meiosis, Karyotypes and Non-disjunction Disorders 1. Clearly explain the difference between the following: a) chromosomes and chromatin
More informationTypical 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 informationName 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 informationLECTURE 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 informationchromosomes found in the somatic (body) cells of an organism is reduced by half to form the sex cells, egg & sperm. chromosomes.
MEIOSIS n Meiosis q The process by which the number of chromosomes found in the somatic (body) cells of an organism is reduced by half to form the sex cells, egg & sperm. q Somatic cells have 46 chromosomes.
More informationChapter 13 Meiosis and Sexual Life Cycles
Chapter 13 Meiosis and Sexual Life Cycles Question? Does Like really beget Like? The offspring will resemble the parents, but they may not be exactly like them. This chapter deals with reproduction of
More informationPurposes of Cell Division
Purposes of Cell Division Increase the number of cells for growth and repair of worn out tissues What examples in the human body can you think of? Transmit genetic information to later generations Why
More informationCELL 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 informationCH 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 informationMEIOSIS. Making gametes
MEIOSIS http://waynesword.palomar.edu/lmexer2a.htm Making gametes Remember from Chapter 1: CHARACTERISTICS OF LIVING THINGS ALL LIVING THINGS REPRODUCE Planaria animation: http://www.t3.rim.or.jp/~hylas/planaria/title.htm
More informationbiology 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 informationLecture 12 - Meiosis
Lecture 12 - Meiosis In this lecture Types of reproduction Alternation of generations Homologous chromosomes and alleles Meiosis mechanism Sources of genetic variation Meiosis and Mitosis Mitosis the production
More informationBIOLOGY 111. CHAPTER 5: Chromosomes and Inheritance
BIOLOGY 111 CHAPTER 5: Chromosomes and Inheritance Chromosomes and Inheritance Learning Outcomes 5.1 Differentiate between sexual and asexual reproduction in terms of the genetic variation of the offspring.
More informationKey Concepts. n Cell Cycle. n Interphase. n Mitosis. n Cytokinesis
The Cell Cycle B-2.6: Summarize the characteristics of the cell cycle: interphase (G 1, S, G 2 ); the phases of mitosis (prophase, metaphase, anaphase, telophase); and plant and animal cytokinesis. Key
More informationCell 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 information11.4 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 informationMeiosis. Bởi: OpenStaxCollege
Meiosis Bởi: OpenStaxCollege Sexual reproduction requires fertilization, a union of two cells from two individual organisms. If those two cells each contain one set of chromosomes, then the resulting cell
More informationCell 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 informationLesson 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 informationSexual Reproduction ( Cell Division ) - Chromosome # s
Sexual Reproduction ( Cell Division ) - Chromosome # s somatic cells: all the cells in the body except for specialized sex cells each somatic cell has a specific # of chromosomes - ( humans have 46, 23
More informationgametes Gametes somatic cells diploid (2n) haploid (n)
Overview of Meiosis Meiosis is a form of cell division that leads to the production of gametes. Gametes: egg cells and sperm cells (reproductive) -contain half the number of chromosomes of an adult body
More informationMeiosis 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 information4 Metaphase I 4 Anaphase I 4 Telophase I 2/4 Prophase II 2 Metaphase II 2 Anaphase II 2 Telophase II 2 Cytokinesis 2
Meiosis What therefore God hath joined together, let not man put asunder Mark 10:6-9 Stage Table 1 Meiosis (Without Crossover Event) # Chromosomes Per Cell Prophase I 4 Metaphase I 4 Anaphase I 4 Telophase
More informationUnit 6 Test: The Cell Cycle
Name Date Class Mrs. Knight Biology EHS Unit 6 Test: The Cell Cycle 1. What are the four main stages of the cell cycle (correct order)? A. G 1, S, G 0, M C. G 2, S, G 1, M B. G 1, S, G 2, M D. M, G 2,
More informationLearning Objectives LO 3.7 The student can make predictions about natural phenomena occurring during the cell cycle. [See SP 6.4]
Big Ideas 3.A.2: In eukaryotes, heritable information is passed to the next generation via processes that include the cell cycle and mitosis or meiosis plus fertilization. CHAPTER 13 MEIOSIS AND SEXUAL
More informationCell Growth, Division and Reproduction
Cell Growth, Division and Reproduction B1 B1. Basic Biological Principles 1. Describe the events that occur during 3 stages of the cell cycle: interphase, nuclear division, cytokinesis. 2. Compare and
More information6-10 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 informationHuman biology Laboratory. Cell division. Lecturer Maysam A Mezher
Human biology Laboratory Cell division Lecturer Maysam A Mezher CHROMOSOME STRUCTURE 1. During nuclear division, the DNA (as chromatin) in a Eukaryotic cell's nucleus is coiled into very tight compact
More informationName: Date: Period: Cell Cycles and DNA Study Guide
Name: Date: Period: DNA (Deoxyribonucleic Acid) is the chemical inside the nucleus of cells that contains hereditary information. DNA is shaped like a double helix/twisted ladder. The sides of the ladder
More informationCh. 10 Sexual Reproduction and Genetics. p
Ch. 10 Sexual Reproduction and Genetics p. 270 - 10.1 Meiosis p. 270-276 Essential Question Main Idea! Meiosis produces haploid gametes Where are the instructions for each trait located in a cell?! On
More informationMeiosis. Nature s Design of Genetic Variability
Meiosis Nature s Design of Genetic Variability Mitosis vs Meiosis Characteristics!!! Mitosis Meiosis Purpose Location Number of Cells at End Human (start) Human (end) Number of Chromosomes Homologous Chromosome
More informationCellular Reproduction
Cellular Reproduction Ratio of Surface Area to Volume As the cell grows, its volume increases much more rapidly than the surface area. The cell might have difficulty supplying nutrients and expelling enough
More informationMitosis 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 informationModule B Unit 5 Cell Growth and Reproduction. Mr. Mitcheltree
Module B Unit 5 Cell Growth and Reproduction Mr. Mitcheltree DNA and Genetics - The Cell and Inheritance Gene = group of codons that code for a specific protein Allele = alternate form of a gene A dominant,
More informationMeiosis. 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 informationMeiosis. Introduction. A life cycle is the generation-to-generation sequence of stages in the reproductive history of an organism.
Meiosis The pomegranate (Punica granatum) is believed to have originated near Iran and southern Afghanistan. The flowers are bright red with five petals. After the flower is fertilized with pollen the
More informationCELL DIVISION IN EUKARYOTES. Professor Andrea Garrison Biology 11 Illustrations 2010 Pearson Education, Inc.
CELL DIVISION IN EUKARYOTES Professor Andrea Garrison Biology 11 Illustrations 2010 Pearson Education, Inc. PURPOSE: Reproduction of new cells from previously existing cells 2 of Genetically Identical
More informationMeiosis 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 informationCellular Reproduction. MXMS 7th Grade Science
Cellular Reproduction MXMS 7th Grade Science What is cell division? 2 primary methods allow for cells to divide and reproduce themselves: A. Mitosis: produces identical offspring B. Meiosis: produces genetically
More informationBiology. Chapter 10 Cell Reproduction. I. Chromosomes
Biology Chapter 10 Cell Reproduction I. Chromosomes Long thin molecules that store genetic information. A. Chromosome Structure 1. Rod shaped structure composed of DNA and protein. 2. DNA is wrapped around
More informationSexual Cell Reproduction Chapter 17
Sexual Cell Reproduction Chapter 17 1 The Importance of Meiosis Meiosis is a two stage cell division in which the chromosome number of the parental cell is reduced by half. Meiosis is the process by which
More informationTHE PROCESS OF LIVING THINGS CREATING OFFSPRING.
REPRODUCTION 1 THE PROCESS OF LIVING THINGS CREATING OFFSPRING. Offspring are the next generation. It happens on multiple levels for multicellular organisms 2 SPECIES SURVIVAL Think back to 7th grade Organisms
More informationThe Cell Cycles Mitosis and Meiosis. Essential question: How do cells reproduce and why?
The Cell Cycles Mitosis and Meiosis Essential question: How do cells reproduce and why? Objectives Section 10.1 Explain why cells divide in terms of growth and cell size Review - Types of Cell Division
More informationChapter 11 - Concept Mapping
Chapter 11 - Concept Mapping Using the terms and phrases provided below, complete the concept map showing the process of meiosis. chromatids crossing-over haploid sperm and ovum homologous chromosomes
More informationAnaphase, 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 informationBellwork. 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 informationA Few Terms: When and where do you want your cells to divide?
Today: - Lab 4 Debrief - Mitosis - Lunch -Meiosis Other: Blood Drive Today! TIME: 11:00am 1:00pm + 2:00pm 5:00pm PLACE: Baxter Events Center Thinking About Mitosis When and where do you want your cells
More informationMeiosis 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