Title: WS CH 18.1 (see p ) Unit: Heredity (7.4.1) 18.1 Reading Outline p Sexual Reproduction and Meiosis

Size: px
Start display at page:

Download "Title: WS CH 18.1 (see p ) Unit: Heredity (7.4.1) 18.1 Reading Outline p Sexual Reproduction and Meiosis"

Transcription

1 Title: WS CH 18.1 (see p ) Unit: Heredity (7.4.1) 18.1 Reading Outline p NPD A. What is sexual reproduction? (p615) 1. _ produces an offspring when genetic materials from two different sex cells combine. a. The female sex cell, a(n), forms in an ovary. b. The male sex cell, a(n), forms in a testis. 2. During a process called _, an egg cell and a sperm cell join together. The new cell that forms is called a(n) _. B. Diploid Cells (p616) 1. Organisms that reproduce sexually make two kinds of cells - cells and sex cells. 2. Body cells are _; they have pairs of chromosomes. 3. If a zygote has too many or too few _, it will not develop properly. 4. Different organisms have different _ of chromosomes. 5. _are pairs of chromosomes that have genes for the same traits arranged in the same order. C. Haploid Cells (p617) 1. Sex cells are _; they have only one chromosome from each pair of chromosomes. 2. In _, one diploid cell divides and makes four haploid cells. D. The Phases of Meiosis (p ) 1. Meiosis involves two divisions of the nucleus and the _. These divisions, known as meiosis I and meiosis II, result in four haploid cells. 2. During _, the reproductive cell grows and duplicates its chromosomes. 3. During meiosis I, each pair of duplicated homologous chromosomes _. 4. After meiosis I, the two cells formed during this stage go through a second division of the and cytoplasm called meiosis II. During meiosis II,sister _ separate to produce four haploid cells. E. Why is meiosis important? (p620) 1. Meiosis forms sex cells with the correct haploid number of_. This maintains the correct _ number of chromosomes in organisms when sex cells join. 2. Meiosis creates genetic variation by producing _cells. F. How do mitosis and meiosis differ? (p621) 1. During _ and cell division, a body cell and its nucleus divide once and produce two identical cells.

2 2. During _, a reproductive cell and its nucleus divide twice and produce four cells two pairs of identical haploid cells. G. Advantages of Sexual Reproduction (p622) 1. Sexual reproduction produces that have a new combination of DNA. This results in genetic among individuals. 2. Genetic variation gives individuals within a population slight differences that might be an advantage if the changes. 3. breeding has been used to develop desirable traits in plants and animals. H. Disadvantages of Sexual Reproduction (p623) 1. One disadvantage of sexual reproduction is that organisms have to grow and develop until they are mature enough to produce cells. 2. Another disadvantage is that searching for a mate takes time and energy and might expose individuals to predators,, or harsh environmental conditions. Vocabulary practice Directions: On the line before each definition, write the letter of the term that matches it correctly. Each term is used only once. 1. production of an offspring through the combination of egg and sperm 2. female sex cell 3. male sex cell 4. joining of egg and sperm 5. the cell formed by fertilization 6. body cell or zygote, which has pairs of chromosomes 7. male or female sex cell that has only one chromosome from each pair 8. process by which one diploid cell divides into four haploid cells 9. two chromosomes that have genes for the same traits in the same order A. diploid cell B. egg C. fertilization D. haploid cell E. homologous chromosomes F. meiosis G. sexual reproduction H. sperm I. zygote

3 Key Concept Builder Key Concept Why is meiosis important? Directions: Answer each question on the lines provided. 1. If a male organism has 40 chromosomes in each body cell, how many chromosomes does a female of the same species have in each body cell? 2. How many homologous pairs of chromosomes does the male have? 3. How many chromosomes would be in a sperm cell and in an egg cell? 4. How many chromosomes would be in an offspring? 5. How many pairs of homologous chromosomes would be in an offspring? 6. What is the difference between a diploid cell and a haploid cell? 7. How does meiosis help maintain diploid cells in offspring? Use the terms chromosomes, diploid, haploid, fertilized egg, and sex cells in your answer.

4 18.1 Vocabulary Directions: Explain the relationship between/among the terms in each group below. Terms How are these terms related? egg, sperm 1. fertilization, zygote 2. diploid, haploid 3. fertilization, sexual reproduction, DNA 4. homologous chromosomes, diploid 5. DNA, meiosis, homologous chromosomes 6. meiosis, diploid, haploid 7.

5

Lesson 1 Sexual Reproduction and Meiosis

Lesson 1 Sexual Reproduction and Meiosis Lesson 1 Name Date Class A. What is sexual reproduction? 1. produces an offspring when genetic materials from two different sex cells combine. a. The female sex cell, a(n), forms in an ovary. b. The male

More information

Reproduction and Meiosis. Reproduction

Reproduction and Meiosis. Reproduction Chapter Introduction Lesson 1 Lesson 2 Chapter Wrap-Up Sexual Reproduction and Meiosis Asexual Reproduction Digital Vision Ltd./SuperStock Why do living things reproduce? What do you think? Before you

More information

Reproduction of Organisms

Reproduction of Organisms Reproduction of Organisms Sexual Reproduction and Meiosis What do you think? Read the three statements below and decide whether you agree or disagree with them. Place an A in the Before column if you agree

More information

What is a sex cell? How are sex cells made? How does meiosis help explain Mendel s results?

What is a sex cell? How are sex cells made? How does meiosis help explain Mendel s results? CHAPTER 6 3 Meiosis SECTION Heredity BEFORE YOU READ After you read this section, you should be able to answer these questions: What is a sex cell? How are sex cells made? How does meiosis help explain

More information

Remind yourself: what happens during mitosis? Write your thoughts on the lines below. What is sexual reproduction?

Remind yourself: what happens during mitosis? Write your thoughts on the lines below. What is sexual reproduction? Meiosis Textbook pages 188 203 Section 6.1 Summary Before You Read Remind yourself: what happens during mitosis? Write your thoughts on the lines below. State the Main Ideas As you read this section, stop

More information

Unit 6 : Meiosis & Sexual Reproduction

Unit 6 : Meiosis & Sexual Reproduction Unit 6 : Meiosis & Sexual Reproduction 2006-2007 Cell division / Asexual reproduction Mitosis produce cells with same information identical daughter cells exact copies clones same number of chromosomes

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

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

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

Binary fission occurs in prokaryotes. parent cell. DNA duplicates. cell begins to divide. daughter cells

Binary fission occurs in prokaryotes. parent cell. DNA duplicates. cell begins to divide. daughter cells Chapter 11 Chapter 11 Some eukaryotes reproduce through mitosis. Binary fission is similar in function to mitosis. Asexual reproduction is the creation of offspring from a single parent. Binary fission

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

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

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

For 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: 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 information

Meiosis and Life Cycles - 1

Meiosis and Life Cycles - 1 Meiosis and Life Cycles - 1 We have just finished looking at the process of mitosis, a process that produces cells genetically identical to the original cell. Mitosis ensures that each cell of an organism

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

= Sexual Reproduction. 2 Types of Reproduction. Key Terms Gonads- sex organs (testes, ovaries) Sexual Reproduction. What is Meiosis?

= Sexual Reproduction. 2 Types of Reproduction. Key Terms Gonads- sex organs (testes, ovaries) Sexual Reproduction. What is Meiosis? Sexual And Meiosis 2 Types of Asexual Sexual Sexual Increases survival for both plants and animals by passing genetic material within generations. Creates VARIETY in a species by the reassortment (mixing)

More information

Warm-Up Questions. 1. What are the stages of mitosis in order? 2. The diagram represents a cell process.

Warm-Up Questions. 1. What are the stages of mitosis in order? 2. The diagram represents a cell process. Warm-Up Questions 1. What are the stages of mitosis in order? 2. The diagram represents a cell process. Which statement regarding this process is true? A. Cell B contains the same genetic information that

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

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

True or false? Comprehension Section The nucleolus directs and controls all of the cell s activities.

True or false? Comprehension Section The nucleolus directs and controls all of the cell s activities. Use with textbook pages 131 132. True or false? Comprehension Section 4.1 Read the statements given below. If the statement is true, write T on the line in front of the statement. If it is false, write

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

Mitosis and Meiosis. 2. The distribution of chromosomes in one type of cell division is shown in the diagram below.

Mitosis and Meiosis. 2. The distribution of chromosomes in one type of cell division is shown in the diagram below. Name: Date: 1. Jack bought a small turtle. Three months later, the turtle had grown to twice its original size. Which of the following statements best describes why Jack s turtle got bigger? A. Parts of

More information

1. The diagram below shows two processes (A and B) involved in sexual reproduction in plants and animals.

1. The diagram below shows two processes (A and B) involved in sexual reproduction in plants and animals. 1. The diagram below shows two processes (A and B) involved in sexual reproduction in plants and animals. Which statement best explains how these processes often produce offspring that have traits not

More information

MEIOSIS, THE BASIS OF SEXUAL REPRODUCTION

MEIOSIS, THE BASIS OF SEXUAL REPRODUCTION MEIOSIS, THE BASIS OF SEXUAL REPRODUCTION Why do kids look different from the parents? How are they similar to their parents? Why aren t brothers or sisters more alike? Meiosis A process where the number

More information

10.2 Sexual Reproduction and Meiosis

10.2 Sexual Reproduction and Meiosis 10.2 Sexual Reproduction and Meiosis There are thousands of different species of organisms. Each species produces more of its own. A species of bacteria splits to make two identical bacteria. A eucalyptus

More information

1. CHROMOSOMES AND MEIOSIS

1. CHROMOSOMES AND MEIOSIS Meiosis and Mendel Answer Key SECTION 1. CHROMOSOMES AND MEIOSIS 1. somatic/body cells; germ cells/gametes 2. in the reproductive organs; ovaries and testes 3. 46 4. mother 5. father 6. autosomes 7. X

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

Biology Kevin Dees. Chapter 13 Meiosis and Sexual Life Cycles

Biology Kevin Dees. Chapter 13 Meiosis and Sexual Life Cycles Chapter 13 Meiosis and Sexual Life Cycles Reproduction Characteristic of all living things Reproduction also involves the transmission of traits from one generation to the next; inheritance Heredity Latin

More information

Chapter 13 Meiosis and Sexual Life Cycles. Reproduction

Chapter 13 Meiosis and Sexual Life Cycles. Reproduction Chapter 13 Meiosis and Sexual Life Cycles Reproduction Characteristic of all living things Reproduction also involves the transmission of traits from one generation to the next; inheritance Heredity Latin

More information

Sexual Reproduction ( Cell Division ) - Chromosome # s

Sexual 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 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

Meiosis and Sexual Reproduction

Meiosis and Sexual Reproduction Note-taking Workbook Meiosis and Sexual Reproduction Section: Reproduction ASEXUAL REPRODUCTION Key Idea: An individual formed by asexual reproduction is to its parent. Additional notes about Asexual Reproduction:

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

CHAPTER 3 VOCABULARY (for now)

CHAPTER 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 information

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

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

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

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

Why do cells divide? Why do cells divide? What would happen if they didn t?

Why do cells divide? Why do cells divide? What would happen if they didn t? 1 of 41 Boardworks Ltd 2007 2 of 41 Boardworks Ltd 2007 Why do cells divide? 3 of 41 Boardworks Ltd 2007 Why do cells divide? What would happen if they didn t? Organisms would only ever exist as single

More information

Mitosis & Meiosis Practice Test

Mitosis & Meiosis Practice Test Name: DO NOT WRITE ON THIS TEST Class: ALL ID: A Mitosis & Meiosis Practice Test Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make

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

Sexual Reproduction and Genetics

Sexual Reproduction and Genetics Sexual Reproduction and Genetics Mitosis is a form of asexual reproduction This means that it only requires 1 organism (ex. Skin cells dividing) For growth and repair in somatic (body) cells! Results

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

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

Division of sex cells

Division of sex cells Division of sex cells MEIOSIS VOCABULARY: Diploid = a cell containing TWO sets of chromosomes. one set inherited from each parent 2n (number of chromosomes) body b d cells (somatic cells) MEIOSIS VOCABULARY:

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 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

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

Meiosis & Sexual Reproduction (Ch. 13)

Meiosis & Sexual Reproduction (Ch. 13) Meiosis & Sexual Reproduction (Ch. 13) 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

Meiosis and Sexual Reproduction

Meiosis and Sexual Reproduction Meiosis and Sexual Reproduction Asexual Reproduction Single parent produces offspring All offspring are genetically identical to one another and to parent Produces identical somatic (body) cells Sexual

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

Cell division and multiplication

Cell division and multiplication CELL DIVISION Cell division and multiplication As we already mentioned, the genetic information contained in the nucleus is hereditary Meaning it is passed on from cell to cell; from parent to child This

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

genome a specific characteristic that varies from one individual to another gene the passing of traits from one generation to the next

genome a specific characteristic that varies from one individual to another gene the passing of traits from one generation to the next genetics the study of heredity heredity sequence of DNA that codes for a protein and thus determines a trait genome a specific characteristic that varies from one individual to another gene trait the passing

More information

Chapter 13: Meiosis and Sexual Life Cycles

Chapter 13: Meiosis and Sexual Life Cycles Name: AP Biology Chapter 13: Meiosis and Sexual Life Cycles 13.1 Offspring acquire genes from parents by inheriting chromosomes 1. Define the following terms: gene locus gamete male gamete female gamete

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. 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

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

Purposes of Cell Division

Purposes 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 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 & 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

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

Cancer: DNA Synthesis, Mitosis, and Meiosis

Cancer: DNA Synthesis, Mitosis, and Meiosis Chapter 5 Cancer: DNA Synthesis, Mitosis, and Meiosis Copyright 2007 Pearson Copyright Prentice Hall, 2007 Inc. Pearson Prentice Hall, Inc. 1 5.6 Meiosis Another form of cell division, meiosis, occurs

More information

Cell Division Review Game Page 1

Cell Division Review Game Page 1 ell ivision Review Game Page 1 1 "Mitosis" is the biological name for the process of cell division. True False 2 In what phase of mitosis does the spindle begin to form? prophase anaphase telophase 3 Which

More information

5.3 Reproduction and Meiosis

5.3 Reproduction and Meiosis 5.3 Reproduction and Meiosis Lesson Objectives Compare and contrast asexual and sexual reproduction. Give an overview of sexual reproduction, and outline the phases of meiosis. Explain why sexual reproduction

More information

Name Class Date. KEY CONCEPT Gametes have half the number of chromosomes that body cells have.

Name Class Date. KEY CONCEPT Gametes have half the number of chromosomes that body cells have. Section 1: Chromosomes and Meiosis KEY CONCEPT Gametes have half the number of chromosomes that body cells have. VOCABULARY somatic cell autosome fertilization gamete sex chromosome diploid homologous

More information

GENES, ALLELES, AND CHROMOSOMES All living things carry their genetic information in DNA Sections of DNA with instructions for making proteins are

GENES, ALLELES, AND CHROMOSOMES All living things carry their genetic information in DNA Sections of DNA with instructions for making proteins are GENES, ALLELES, AND CHROMOSOMES All living things carry their genetic information in DNA Sections of DNA with instructions for making proteins are called genes DNA coils up to form structures called chromosomes

More information

Meiosis. Activity. Procedure Part I:

Meiosis. Activity. Procedure Part I: Activity The purpose of meiosis, a cell division process, is to create gametes with genetic variability for use in sexual reproduction. These gametes, or the sperm and egg, are then used in the process

More information

Meiosis & Sexual Reproduction (Ch. 11)

Meiosis & Sexual Reproduction (Ch. 11) Meiosis & Sexual Reproduction (Ch. 11) Cell division / Asexual reproduction Mitosis produce cells with same information identical daughter cells exact copies clones same DNA Aaaargh! I m seeing double!

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

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

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

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 Reproduction. Chapter 10. Halving the Chromosome Number. Homologous Pairs

Meiosis and Sexual Reproduction. Chapter 10. Halving the Chromosome Number. Homologous Pairs Meiosis and Sexual Reproduction Chapter 10 Outline Reduction in Chromosome Number Homologous Pairs Meiosis Overview Genetic Recombination Crossing-Over Independent Assortment Fertilization Meiosis I Meiosis

More information

Cell division / Asexual reproduction

Cell division / Asexual 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

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

Teaching unit: Meiosis: The Steps to Creating Life

Teaching unit: Meiosis: The Steps to Creating Life Lesson Title: Meiosis Teacher s Name: I. Identification Course title: Biology/Life Science Teaching unit: Meiosis: The Steps to Creating Life CDE Standards Addressed: Biology/Life Sciences a. Students

More information

Q1. The diagram shows some of the cell divisions that occur during human reproduction.

Q1. The diagram shows some of the cell divisions that occur during human reproduction. Q. The diagram shows some of the cell divisions that occur during human reproduction. (a) (i) Name the type of cell division that produces cell D from cell B. () Which organ in the male body produces cell

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 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

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

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

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

Biology. Chapter 12. Meiosis and Sexual Reproduction. Concepts and Applications 9e Starr Evers Starr. Cengage Learning 2015

Biology. Chapter 12. Meiosis and Sexual Reproduction. Concepts and Applications 9e Starr Evers Starr. Cengage Learning 2015 Biology Concepts and Applications 9e Starr Evers Starr Chapter 12 Meiosis and Sexual Reproduction 12.1 Why Sex? In asexual reproduction, a single individual gives rise to offspring that are identical to

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

Chapter 13- Reproduction, Meiosis, and Life Cycles. Many plants and other organisms depend on sexual reproduction.

Chapter 13- Reproduction, Meiosis, and Life Cycles. Many plants and other organisms depend on sexual reproduction. Chapter 13- Reproduction, Meiosis, and Life Cycles Many plants and other organisms depend on sexual reproduction. Flowers are the sexual reproductive organ systems of angiosperms. Sexual reproduction gametes

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

Ch. 10 Sexual Reproduction and Genetics. p

Ch. 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 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

Lesson Overview 11.4 Meiosis

Lesson Overview 11.4 Meiosis Lesson Overview 11.4 Meiosis 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

More information

Ch. 13 Meiosis & Sexual Life Cycles

Ch. 13 Meiosis & Sexual Life Cycles Introduction Ch. 13 Meiosis & Sexual Life Cycles 2004-05 Living organisms are distinguished by their ability to reproduce their own kind. -Offspring resemble their parents more than they do less closely

More information

5. As compared to the human sperm cell, the human egg cell contains more... a) cytoplasm c) centrosomes b) mitochondria d) chromosomes

5. As compared to the human sperm cell, the human egg cell contains more... a) cytoplasm c) centrosomes b) mitochondria d) chromosomes BIOLOGY - 3201. Quiz: Cell Reproduction. NAME : Multiple Choice. (1% each) 1. Which of the following is NOT true of mitotic cell division? a) It involves nuclear division. b) It involves division of the

More information

Lesson Overview Meiosis

Lesson Overview Meiosis 11.4 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? What cellular

More information

Chapter 5. Heredity. Table of Contents. Section 1 Mendel and His Peas. Section 2 Traits and Inheritance. Section 3 Meiosis

Chapter 5. Heredity. Table of Contents. Section 1 Mendel and His Peas. Section 2 Traits and Inheritance. Section 3 Meiosis Heredity Table of Contents Section 1 Mendel and His Peas Section 2 Traits and Inheritance Section 3 Meiosis Section 1 Mendel and His Peas Objectives Explain the relationship between traits and heredity.

More information

Name Class Date. Pearson Education, Inc., publishing as Pearson Prentice Hall. 33

Name Class Date. Pearson Education, Inc., publishing as Pearson Prentice Hall. 33 Chapter 11 Introduction to Genetics Chapter Vocabulary Review Matching On the lines provided, write the letter of the definition of each term. 1. genetics a. likelihood that something will happen 2. trait

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

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

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