Question 1

When chromosomes fail to separate during meiosis,this is known as

Accepted Answer

A)  crossing over. 
B)  nondisjunction. 
C)  translocation. 
D)  random separation. 
E)  mitosis. 
A)  crossing over. 
B)  nondisjunction. 
C)  translocation. 
D)  random separation. 
E)  mitosis. B

Question 2

1n is an abbreviation for

Accepted Answer

A)  haploid. 
B)  somatic cells. 
C)  diploid. 
D)  mitosis. 
E)  meiosis. 
A)  haploid. 
B)  somatic cells. 
C)  diploid. 
D)  mitosis. 
E)  meiosis. A

Question 3

If a chromosome in one of your bone cells becomes mutated,you will not pass this mutation onto your children because

Accepted Answer

A)  somatic cells cannot undergo mitosis. 
B)  germ cells cannot undergo meiosis. 
C)  germ cells cannot undergo mitosis. 
D)  somatic cells cannot undergo meiosis. 
A)  somatic cells cannot undergo mitosis. 
B)  germ cells cannot undergo meiosis. 
C)  germ cells cannot undergo mitosis. 
D)  somatic cells cannot undergo meiosis. D

Question 4

Why is it essential that meiosis produce haploid cells?

Accepted Answer

A)  so that the number of chromosomes will double each generation 
B)  to produce haploid offspring 
C)  to prevent the number of chromosomes from doubling each generation 
D)  to produce diploid gametes 
E)  to allow asexual reproduction 
A)  so that the number of chromosomes will double each generation 
B)  to produce haploid offspring 
C)  to prevent the number of chromosomes from doubling each generation 
D)  to produce diploid gametes 
E)  to allow asexual reproduction

Question 5

If human gametes were diploid

Accepted Answer

A)  the products of fertilization would have the same number of chromosomes as their parents. 
B)  the products of fertilization would have fewer chromosomes than their parents. 
C)  fertilization could not occur. 
D)  the products of fertilization would have more chromosomes than their parents. 
E)  the embryo would be diploid. 
A)  the products of fertilization would have the same number of chromosomes as their parents. 
B)  the products of fertilization would have fewer chromosomes than their parents. 
C)  fertilization could not occur. 
D)  the products of fertilization would have more chromosomes than their parents. 
E)  the embryo would be diploid.

Question 6

Alternate forms of the same gene

Accepted Answer

A)  do not exist. 
B)  are alleles. 
C)  are homologs. 
D)  are sister chromatids. 
E)  do not occur in the same individual. 
A)  do not exist. 
B)  are alleles. 
C)  are homologs. 
D)  are sister chromatids. 
E)  do not occur in the same individual.

Question 7

The roundworm Caenorhabditis elegans is a hermaphrodite and can only undergo sexual reproduction.

Accepted Answer

A) True 
 B)False

Question 8

Mitotic cell division creates identical copies by replicating a cell's DNA ________ and then dividing ________.

Accepted Answer

A)  once; twice 
B)  twice; once 
C)  twice; twice 
D)  once; once 
E)  No answer is correct. 
A)  once; twice 
B)  twice; once 
C)  twice; twice 
D)  once; once 
E)  No answer is correct.

Question 9

After the completion of meiosis in human males,a diploid germ cell has produced cells with half the original chromosome number,generating ________ haploid cells.

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  23 
E)  46 
A)  2 
B)  3 
C)  4 
D)  23 
E)  46

Question 10

The process that merges the gametes from two parents is

Accepted Answer

A)  fertilization. 
B)  meiosis. 
C)  mitosis. 
D)  mutation. 
E)  conjugation. 
A)  fertilization. 
B)  meiosis. 
C)  mitosis. 
D)  mutation. 
E)  conjugation.

Question 11

If you were looking at a diagram of the male human body and were asked to locate the germ cells,you would point to the

Accepted Answer

A)  bone marrow. 
B)  blood. 
C)  brain. 
D)  skin. 
E)  testes. 
A)  bone marrow. 
B)  blood. 
C)  brain. 
D)  skin. 
E)  testes.

Question 12

If a diploid sperm fertilizes a diploid egg it will produce a ________ zygote.

Accepted Answer

A)  triploid 
B)  tetraploid 
C)  diploid 
D)  haploid 
E)  hexaploid 
A)  triploid 
B)  tetraploid 
C)  diploid 
D)  haploid 
E)  hexaploid

Question 13

What creates genetically different offspring in both asexual and sexual reproduction?

Accepted Answer

A)  mutations 
B)  mitosis 
C)  meiosis 
D)  mutations and mitosis 
E)  mitosis and meiosis 
A)  mutations 
B)  mitosis 
C)  meiosis 
D)  mutations and mitosis 
E)  mitosis and meiosis

Question 14

What two processes result in genetically different products?

Accepted Answer

A)  mitosis and meiosis 
B)  mitosis and asexual reproduction 
C)  meiosis and asexual reproduction 
D)  meiosis and sexual reproduction 
E)  mitosis and sexual reproduction 
A)  mitosis and meiosis 
B)  mitosis and asexual reproduction 
C)  meiosis and asexual reproduction 
D)  meiosis and sexual reproduction 
E)  mitosis and sexual reproduction

Question 15

People who have a single X chromosome are female,while those with XXY sex chromosomes are males.In order to be a female,a human

Accepted Answer

A)  must have two X chromosomes. 
B)  cannot have a Y chromosome. 
C)  must have only one X chromosome. 
D)  must have only one Y chromosome. 
E)  cannot have an X chromosome. 
A)  must have two X chromosomes. 
B)  cannot have a Y chromosome. 
C)  must have only one X chromosome. 
D)  must have only one Y chromosome. 
E)  cannot have an X chromosome.

Question 16

Genes A and B are on the same chromosome.What gametes could an individual with the allele combination AABB produce?

Accepted Answer

A)  AABB 
B)  A 
C)  AB 
D)  B 
E)  AAB 
A)  AABB 
B)  A 
C)  AB 
D)  B 
E)  AAB

Question 17

If a haploid cell goes through meiosis it will generate

Accepted Answer

A)  four haploid cells. 
B)  two diploid cells. 
C)  two haploid cells. 
D)  four diploid cells. 
E)  No answer is correct. 
A)  four haploid cells. 
B)  two diploid cells. 
C)  two haploid cells. 
D)  four diploid cells. 
E)  No answer is correct.

Question 18

Fraternal twins (dizygotic)result from the fertilization of

Accepted Answer

A)  two eggs and two sperm. 
B)  two eggs and one sperm. 
C)  one egg and two sperm. 
D)  one egg and one sperm. 
E)  two eggs and one sperm OR one egg and two sperm. 
A)  two eggs and two sperm. 
B)  two eggs and one sperm. 
C)  one egg and two sperm. 
D)  one egg and one sperm. 
E)  two eggs and one sperm OR one egg and two sperm.

Question 19

The chromosomal designation for a human male is

Accepted Answer

A)  XX. 
B)  XO. 
C)  XY. 
D)  YY. 
E)  XXX. 
A)  XX. 
B)  XO. 
C)  XY. 
D)  YY. 
E)  XXX.

Question 20

Sexual reproduction includes

Accepted Answer

A)  mitosis, fission, and fertilization. 
B)  mitosis, meiosis, and budding. 
C)  meiosis, fertilization, and mitosis. 
D)  meiosis, fertilization, and transduction. 
E)  fertilization, fission, and meiosis. 
A)  mitosis, fission, and fertilization. 
B)  mitosis, meiosis, and budding. 
C)  meiosis, fertilization, and mitosis. 
D)  meiosis, fertilization, and transduction. 
E)  fertilization, fission, and meiosis.

Exam 9: Sexual Reproduction and Meiosis

When chromosomes fail to separate during meiosis,this is known as

1n is an abbreviation for

If a chromosome in one of your bone cells becomes mutated,you will not pass this mutation onto your children because

Why is it essential that meiosis produce haploid cells?

If human gametes were diploid

Alternate forms of the same gene

The roundworm Caenorhabditis elegans is a hermaphrodite and can only undergo sexual reproduction.

Mitotic cell division creates identical copies by replicating a cell's DNA ________ and then dividing ________.

After the completion of meiosis in human males,a diploid germ cell has produced cells with half the original chromosome number,generating ________ haploid cells.

The process that merges the gametes from two parents is

If you were looking at a diagram of the male human body and were asked to locate the germ cells,you would point to the

If a diploid sperm fertilizes a diploid egg it will produce a ________ zygote.

What creates genetically different offspring in both asexual and sexual reproduction?

What two processes result in genetically different products?

People who have a single X chromosome are female,while those with XXY sex chromosomes are males.In order to be a female,a human

Genes A and B are on the same chromosome.What gametes could an individual with the allele combination AABB produce?

If a haploid cell goes through meiosis it will generate

Fraternal twins (dizygotic)result from the fertilization of

The chromosomal designation for a human male is

Sexual reproduction includes

The Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

Respiration and Fermentation

DNA Structure and Gene Function

DNA Replication,Binary Fission,and Mitosis

Patterns of Inheritance

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Evidence of Evolution

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Evolution and Diversity of Microbial Life

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Evolution and Diversity of Animals

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Animal Tissues and Organ Systems

The Nervous System and the Senses

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Animal Reproduction and Development

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Mitotic cell division creates identical copies by replicating a cell's DNA and then dividing .