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

Size: px
Start display at page:

Download "2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes. 2 points: Easy - Chromosomes"

Transcription

1 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 cell in? Be Metaphase What is created during the S stage of Interphase? DNA (chromatin) What is the 46 human diploid number?

2 Which process produces 4 haploid cells? Meiosis the cell cycle is this cell in? Be Prophase Which parts attach and pull s during mitosis and meiosis? i Spindle fibers Does this karyotype show a boy or girl? Be Answer: Boy the cell cycle is this cell in? Be Telophase What is the 23 human haploid number?

3 What is the linear, string form of DNA called? Chromatin Which cellular process creates somatic cells? Mitosis the cell cycle is this cell in? Be Anaphase What is this picture called? Be sure to hide the Karyotype If there are pairs of s in a fish, how many s do skin cells contain? Name the two separate halves of the meiosis process. Meiosis I and Meiosis II

4 Which process takes place in the testes? Spermatogenesis (meiosis i is too vague) Is this a diploid or haploid karyotype? Be Diploid In order, name the stages of mitosis. Prophase, Metaphase, Anaphase, Telophase Which objects create the zygote? Egg and sperm (Interphase is not a stage of mitosis) Which cells use the cell plate during cytokinesis? Plant cells If there are pairs of chicken s, what is the haploid number? 40 pairs means a total of 80 s. Haploid is when there are ½ the total number.

5 During which stage of mitosis are chromatids separated? Anaphase Which cellular process replaces aging cells? Mitosis Besides determining sex, what else are karyotypes used for? Identify defects Put the pictures in the order from start to finish. Be Answer = E, D, A, C, B Name the location of a where two chromatids are connected. Centromere During which stage of the cell cycle do s first appear? Prophase

6 During cytokinesis, what prevents plants cells from pinching inward similar to animal cells? The hard Cell wall Which process is taking place in this picture? Be Answer: Crossing over In order, name the three stages of Interphase. G1, S, G2 or Gap 1, Synthesis, Gap2 What are the two Homologous same copies of a called? Name 3 things that are happening in this picture. Be sure to hide the Answers 1) Cytokinesis (cytoplasm divides) 2) Nucleus reforms 3) Chromosomes unwind Name 3 cells created by meiosis. Sperm, egg, pollen

7 Name 3 things that are happening in this picture. Be sure to hide the Answers 1) Nucleus dissolves 2) Chromosome forms 3) Spindle fibers created The pairing of creates a tetrad. Homologous s During meiosis, which event is defined as the exchanging of genes? Crossing over By definition, what divides during cytokinesis? Cytoplasm What notation 47, XX, +21 would be used to describe a female or with Down s syndrome? 47, +21, XX Name the 3 cells Polar bodies that are destroyed during oogenesis.

8 Homologous s form tetrads during which event Synapsis Which process takes place in the ovaries? Oogenesis (meiosis i is too vague) Name 3 things that are happening in this picture. Be sure to hide the Answers 1) Cell enlarges 2) Organelles created 3) DNA created 4) Normal function performed During which Metaphase I stage of meiosis are tetrads pulled (must say one ) to the cell s equator?

Biology Unit 6 Chromosomes and Mitosis

Biology 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 information

gametes Gametes somatic cells diploid (2n) haploid (n)

gametes 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 information

MEIOSIS. KEY CONCEPT Gametes have half the number of chromosomes that body cells have.

MEIOSIS. 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 information

CELL REPRODUCTION VOCABULARY- CHAPTER 8 (33 words)

CELL REPRODUCTION VOCABULARY- CHAPTER 8 (33 words) CELL REPRODUCTION- CHAPTER 8 CELL REPRODUCTION VOCABULARY- CHAPTER 8 (33 words) 1. Chromosome 2. histone 3. chromatid 4. Centromere 5. chromatin 6. autosome 7. Sex chromosome 8. homologous chromosome 9.

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

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

Cell Cycle (mitosis and meiosis) Test Review

Cell 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 information

Answers 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 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 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

MEIOSIS. Stages of Meiosis, Gametogenesis, Sex Determination, & Abnormalities.

MEIOSIS. Stages of Meiosis, Gametogenesis, Sex Determination, & Abnormalities. MEIOSIS Stages of Meiosis, Gametogenesis, Sex Determination, & Abnormalities. Stages and Steps of Meiosis Interphase Same as in Mitosis 3 stages G1, S, G2 DNA replication and cell growth Meiosis I Prophase

More information

Cellular Division. copyright cmassengale

Cellular Division. copyright cmassengale Cellular Division 1 Cell Division All cells are derived from pre- existing cells New cells are produced for growth and to replace damaged or old cells Differs in prokaryotes (bacteria) and eukaryotes (protists,

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

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

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

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

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 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 information

2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands

2:1 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 information

Key Concepts. n Cell Cycle. n Interphase. n Mitosis. n Cytokinesis

Key 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 information

Meiosis: M-Phase part 2. How is meiosis different from mitosis? Some terms: Some terms: Some terms:

Meiosis: M-Phase part 2. How is meiosis different from mitosis? Some terms: Some terms: Some terms: M-Phase part 2 Meiosis and Cytokinesis Meiosis: A special type of cell division that produces gametes. Cell division that occurs in sex organs. 2 successive nuclear divisions Genetic mistakes (gene and

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. Section 8-3

Meiosis. 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 information

Chapter 13: Meiosis & Sexual Life Cycles

Chapter 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 information

chromosomes found in the somatic (body) cells of an organism is reduced by half to form the sex cells, egg & sperm. chromosomes.

chromosomes 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 information

CELL DIVISION: MEIOSIS

CELL 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 information

Cellular Reproduction. MXMS 7th Grade Science

Cellular 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 information

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 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 information

KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions.

KEY 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 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

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

Reproduction & Cell Types

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 information

CELL REPRODUCTION NOTES

CELL 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 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

CHAPTER 6. Chromosomes and Meiosis

CHAPTER 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 information

Unit 6 Test: The Cell Cycle

Unit 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 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

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

Sexual Reproduction Science 9- Mr. Klasz

Sexual 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 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

The 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? 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 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

Question #1 What must occur in order for Mendel s principles to hold true?

Question #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 information

Module B Unit 5 Cell Growth and Reproduction. Mr. Mitcheltree

Module 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 information

9-4 Meiosis Meiosis. Slide 1 of 35

9-4 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 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

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

CELL 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. 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 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

Chapter 13: Meiosis & Sexual Life Cycles

Chapter 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 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

Bio 105: Cell Division

Bio 105: Cell Division Cell Division Bio 105: Cell Division Starts with DNA Replication Laboratory 8 DNA Replication When does DNA replicate? Just prior to cell division Multicellular Organisms Grow Replace old cells Unicellular

More information

MEIOSIS & SEXUAL LIFE CYCLES CHAPTER 13

MEIOSIS & SEXUAL LIFE CYCLES CHAPTER 13 MEIOSIS & SEXUAL LIFE CYCLES CHAPTER 13 THE PROBLEM In mitosis, 2 diploid (2n) daughter cells are produced exactly like the parent cell. If these 2n cells united through fertilization, the result would

More information

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

What 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) 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 information

Biology. Chapter 10 Cell Reproduction. I. Chromosomes

Biology. 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 information

4/6/2014. Chromosome Number

4/6/2014. 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 information

Chapter 13 Meiosis and Sexual Life Cycles

Chapter 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 information

Mitosis. making identical copies of diploid cells

Mitosis. making identical copies of diploid cells Meiosis Mitosis + making identical copies of diploid cells Meiosis + making haploid gametes from a diploid precursor Some terminology Diploid containing two copies of the genome per cell Haploid - containing

More information

What is Mitosis? What is the purpose of Mitosis? Growth Repair Asexual reproduction What is the ultimate result of Mitosis?

What is Mitosis? What is the purpose of Mitosis? Growth Repair Asexual reproduction What is the ultimate result of Mitosis? Sexual Reproduction What is Mitosis? What is the purpose of Mitosis? Growth Repair Asexual reproduction What is the ultimate result of Mitosis? http://www.youtube.com/watch?v=1fyfdfdrymq Somatic cells

More information

Meiosis produces haploid gametes.

Meiosis 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 information

11-4 Meiosis. Chromosome Number

11-4 Meiosis. Chromosome Number 11-4 Meiosis Chromosome Number Sexual reproduction shuffles and recombines genes from two parents. During gametogenesis, genes are segregated and assorted (shuffled) into gemetes, and at fertilization,

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

Human biology Laboratory. Cell division. Lecturer Maysam A Mezher

Human 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 information

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

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 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 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

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

Meiosis. The making of sex cells (sperm & egg).

Meiosis. The making of sex cells (sperm & egg). Meiosis The making of sex cells (sperm & egg). Meiosis (continued) 2 Meiosis I 2n 1n Prophase I Metaphase I Anaphase I Telophase I - Homologous Chromosomes line up at equator - Homologous Chromosomes pull

More information

SEXUAL REPRODUCTION MEIOSIS SPERMATOGENESIS & OOGENESIS 2/6/2011. Asexual Reproduction:

SEXUAL 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 information

Cell Division (Meiosis)

Cell 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 information

Sexual Cell Reproduction Chapter 17

Sexual 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 information

Review 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 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 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

Cell Cycle and Cell Division

Cell Cycle and Cell Division Cell Cycle and Cell Division The Cell Cycle is the series of events that take place in the cell from one cell division to another. Cell Cycle includes: 1-Interphase 2-Mitosis 3-Cytokinesis Phases of the

More information

Unit 2: Characteristics of Living Things Lesson 25: Mitosis

Unit 2: Characteristics of Living Things Lesson 25: Mitosis Name Unit 2: Characteristics of Living Things Lesson 25: Mitosis Objective: Students will be able to explain the phases of Mitosis. Date Essential Questions: 1. What are the phases of the eukaryotic cell

More information

Agenda. 1. Lesson Learning Goals 2. Meiosis 3. Meiosis Bingo

Agenda. 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 information

11-4 Meiosis Chromosome Number Slide 1 of 35

11-4 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 information

The Cell Cycle and Cell Division

The Cell Cycle and Cell Division The Cell Cycle and Cell Division «The cell cycle is a regular pattern of growth, DNA replication, and cell division. The cell cycle has four main stages. «The main stages of the cell cycle are G1 (gap

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

Asexual vs. Sexual. Biology 3201 Unit II Reproduction How Reproductive Cells are Produced. two parents offspring is unique

Asexual 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 information

MGC New Life Christian Academy

MGC 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 information

Cellular Reproduction

Cellular 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 information

Chapter 11 - Concept Mapping

Chapter 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 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

MEIOSIS. Making gametes

MEIOSIS.  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 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

Cell Division. Binary Fission, Mitosis & Meiosis 2/9/2016. Dr. Saud Alamri

Cell Division. Binary Fission, Mitosis & Meiosis 2/9/2016. Dr. Saud Alamri Cell Division Binary Fission, Mitosis & Meiosis 1 Prokaryotic cells reproduce asexually by a type of cell division called binary fission 2 Prokaryotic chromosome Division into two daughter cells Plasma

More information

Unit 7: MEIOSIS PACKET

Unit 7: MEIOSIS PACKET Unit 7: MEIOSIS PACKET This packet is designed to help you understand several concepts about Cell Division. As you practice the exercises on each handout, you will be able to: Ask questions to clarify

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

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

Lesson Overview Meiosis

Lesson 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 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

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

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 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

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

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

Chapter 2: Chromosomes and cellular reproduction

Chapter 2: Chromosomes and cellular reproduction Chapter 2: Chromosomes and cellular reproduction I. Contrast between prokaryotes and eukaryotes. See Figure 2.1 Nucleus absent Small diameter 1 to 10 µm Genome usually 1 circular molecule Small genome;

More information

Chapter 13: Meiosis and Sexual Life Cycles Overview: Hereditary Similarity and Variation

Chapter 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 information

http://abiogenisis.deviantart.com http://commons.wikimedia.org Ascaris http://commons.wikimedia.org 1. Why don t people give birth to chickens or cats? 2. How many kids could your parents have before two

More information

Chromosome Numbers of Some Common Organisms

Chromosome Numbers of Some Common Organisms Meiosis Introduction Process of reduction division Purpose: Produces gametes (sex ) sperm & egg Meiosis is NOT a cycle like mitosis. 1 2 3 Diploid vs. Haploid Diploid a cell that contains homologous chromosomes

More information

Cell Division Unit Objectives

Cell Division Unit Objectives Cell Division Unit Objectives In this second unit of biology, you will be learning how cells divide. Did you know that your body contains over a trillion cells? Where did all of these cells come from?

More information

Mitosis Verses Meiosis

Mitosis Verses Meiosis Mitosis Verses Meiosis Name LT: I can compare mitosis and meiosis using various resources. Standards: 4.1b, 4.1c Visit the following links: https://www.youtube.com/watch?v=f-ldpgefahi https://www.youtube.com/watch?v=vzdmg7ke69g

More information