Question 1

In the process of egg production,one cell produced during meiosis will become the egg,and the other three will become:

Accepted Answer

A) primary oocytes. 
B) oogonia. 
C) primary bodies. 
D) polar bodies. 
A) primary oocytes. 
B) oogonia. 
C) primary bodies. 
D) polar bodies.

Question 2

In the process of crossing over:

Accepted Answer

A) sister chromatids separate. 
B) maternal chromosomes assort independently of paternal chromosomes. 
C) homologous chromosomes separate. 
D) sister chromatids exchange genetic material. 
E) non-sister chromatids of homologous chromosomes exchange genetic material. 
A) sister chromatids separate. 
B) maternal chromosomes assort independently of paternal chromosomes. 
C) homologous chromosomes separate. 
D) sister chromatids exchange genetic material. 
E) non-sister chromatids of homologous chromosomes exchange genetic material.

Question 3

What features of spermatogonia allow males to produce sperm throughout most of their lives? What would happen if the spermatogonia,instead of producing more spermatogonia,divided and produced four gametes?

Accepted Answer

Spermatogonia are diploid stem cells tha

Question 4

________ is the process in which a single diploid cell divides to produce haploid reproductive cells.

Accepted Answer

The answer of ________ is the process in which a...

Question 5

In a human female,what happens to the collection of oocytes in the ovaries once puberty begins?

Accepted Answer

A) The oocytes all mature into eggs as soon as puberty is reached. 
B) Ovulation stimulates all of the oocytes to complete meiosis II. 
C) One oocyte per month matures and completes meiosis I. 
D) One oocyte per month matures and completes meiosis I and meiosis II. 
E) All ooctyes are expelled from the ovaries to complete meiosis II. 
A) The oocytes all mature into eggs as soon as puberty is reached. 
B) Ovulation stimulates all of the oocytes to complete meiosis II. 
C) One oocyte per month matures and completes meiosis I. 
D) One oocyte per month matures and completes meiosis I and meiosis II. 
E) All ooctyes are expelled from the ovaries to complete meiosis II.

Question 6

Suppose a researcher claims to be able to make a hybrid animal that is a cross between a human and a rhesus monkey.The normal diploid number for humans is 46,and the normal diploid number for rhesus monkeys is 48.Based on normal meiosis,how many chromosomes would the human gamete have,and how many chromosomes would the rhesus monkey have? Given these numbers,how many chromosomes would you expect the hybrid embryo to contain?

Accepted Answer

The human gamete would have 23

Question 7

When a cutting from a plant sprouts roots and yields a new,independent plant,what process has occurred?

Accepted Answer

A) sexual reproduction 
B) self-fertilization 
C) recombination 
D) asexual reproduction 
E) cytokinesis 
A) sexual reproduction 
B) self-fertilization 
C) recombination 
D) asexual reproduction 
E) cytokinesis

Question 8

What is an autosome?

Accepted Answer

A) one of the non-sex chromosomes 
B) a chromosome that confers male or female sex 
C) a Y chromosome 
D) an X chromosome 
A) one of the non-sex chromosomes 
B) a chromosome that confers male or female sex 
C) a Y chromosome 
D) an X chromosome

Question 9

Errors in meiosis can be one mechanism of evolution.A change in the number of chromosomes can lead to the production of new species.Some plant species may have originated from errors during cell division,which led to them having more than two sets of chromosomes,a condition called polyploidy.Hypothesize what kind of error during meiosis might occur to cause a normally diploid plant to generate tetraploid offspring,in which the offspring have four sets of chromosomes.

Accepted Answer

There may be a failure of chromosomes to

Question 10

The primary purpose of meiosis is to ________ the number of chromosomes; meiosis also generates ________ in the resulting cells.

Accepted Answer

reduce or

Question 11

Which of the following occurs during anaphase I?

Accepted Answer

A) Homologous chromosomes are moved to the metaphase plate. 
B) Sister chromatids are separated. 
C) Crossing over begins. 
D) Homologous chromosomes are separated. 
E) Cytokinesis occurs. 
A) Homologous chromosomes are moved to the metaphase plate. 
B) Sister chromatids are separated. 
C) Crossing over begins. 
D) Homologous chromosomes are separated. 
E) Cytokinesis occurs.

Question 12

Bacteria (prokaryotes)divide by ________ reproduction,and eukaryotes reproduce by ________ reproduction.

Accepted Answer

A) sexual; asexual 
B) either asexual or sexual; either asexual or sexual 
C) sexual; either asexual or sexual 
D) asexual; both asexual and sexual 
E) asexual; sexual 
A) sexual; asexual 
B) either asexual or sexual; either asexual or sexual 
C) sexual; either asexual or sexual 
D) asexual; both asexual and sexual 
E) asexual; sexual

Question 13

If a cell has a haploid number of 5,during mitosis there will be ________ chromosomes at metaphase,________ chromosomes at anaphase,and ________ chromosomes per daughter cell at telophase.

Accepted Answer

A) 5; 10; 5 
B) 5; 5; 5 
C) 10; 20; 10 
D) 10; 10; 10 
E) 10; 10; 5 
A) 5; 10; 5 
B) 5; 5; 5 
C) 10; 20; 10 
D) 10; 10; 10 
E) 10; 10; 5

Question 14

In humans,which cells undergo meiosis?

Accepted Answer

A) polar bodies 
B) oogonia and spermatogonia 
C) zygotes 
D) primary oocytes and spermatocytes 
E) sperm and eggs 
A) polar bodies 
B) oogonia and spermatogonia 
C) zygotes 
D) primary oocytes and spermatocytes 
E) sperm and eggs

Question 15

Different species can sometimes interbreed to produce hybrid offspring.For example,the breeding of a horse with a donkey produces a mule.However,these hybrids are usually sterile.A horse will produce gametes with 32 chromosomes,and a donkey will produce gametes with 31 chromosomes,resulting in a mule with 63 chromosomes.Using your understanding of meiosis,propose a reason why mules are sterile.

Accepted Answer

Because the cells have an odd

Question 16

What is one of the cellular differences between human eggs and sperm?

Accepted Answer

A) Sperm are arrested in meiosis II; eggs have completed meiosis. 
B) Eggs have 200,000 times the volume of sperm. 
C) Sperm contain a haploid set of chromosomes; eggs are diploid. 
D) Sperm are arrested in meiosis I; eggs have completed meiosis. 
E) Sperm have 200,000 times the volume of eggs. 
A) Sperm are arrested in meiosis II; eggs have completed meiosis. 
B) Eggs have 200,000 times the volume of sperm. 
C) Sperm contain a haploid set of chromosomes; eggs are diploid. 
D) Sperm are arrested in meiosis I; eggs have completed meiosis. 
E) Sperm have 200,000 times the volume of eggs.

Question 17

In recombination (crossing over),DNA is exchanged between homologous,non-sister chromatids.

Accepted Answer

A) True 
 B)False

Exam 10: Preparing for Sexual Reproduction: Meiosis

In the process of egg production,one cell produced during meiosis will become the egg,and the other three will become:

In the process of crossing over:

What features of spermatogonia allow males to produce sperm throughout most of their lives? What would happen if the spermatogonia,instead of producing more spermatogonia,divided and produced four gametes?

________ is the process in which a single diploid cell divides to produce haploid reproductive cells.

In a human female,what happens to the collection of oocytes in the ovaries once puberty begins?

When a cutting from a plant sprouts roots and yields a new,independent plant,what process has occurred?

What is an autosome?

The primary purpose of meiosis is to ________ the number of chromosomes; meiosis also generates ________ in the resulting cells.

Which of the following occurs during anaphase I?

Bacteria (prokaryotes)divide by ________ reproduction,and eukaryotes reproduce by ________ reproduction.

If a cell has a haploid number of 5,during mitosis there will be ________ chromosomes at metaphase,________ chromosomes at anaphase,and ________ chromosomes per daughter cell at telophase.

In humans,which cells undergo meiosis?

What is one of the cellular differences between human eggs and sperm?

In recombination (crossing over),DNA is exchanged between homologous,non-sister chromatids.

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

Filters

The primary purpose of meiosis is to the number of chromosomes; meiosis also generates in the resulting cells.

Bacteria (prokaryotes)divide by reproduction,and eukaryotes reproduce by reproduction.

If a cell has a haploid number of 5,during mitosis there will be chromosomes at metaphase, chromosomes at anaphase,and chromosomes per daughter cell at telophase.