Question 1

In meiosis,homologous chromosomes align next to one another during

Accepted Answer

A)  interphase I.
B)  metaphase II.
C)  prophase I.
D)  metaphase I.
E)  prophase II.F) C) and E)
G) B) and C)

Question 2

There are two divisions in meiosis resulting in four daughter cells.

Accepted Answer

A) True 
 B)False

Question 3

Genetic variability will not occur among offspring if independent assortment does not occur during anaphase I of meiosis.

Accepted Answer

A) True 
 B)False

Question 4

Mitosis does not require that homologous chromosomes align with one another.

Accepted Answer

A) True 
 B)False

Question 5

Genetic variability will not occur among offspring if crossing over does not occur during prophase I of meiosis.

Accepted Answer

A) True 
 B)False

Question 6

The number of chromosomes in a daughter cell produced by meiosis is the same as the number of chromosomes in the parent cell.

Accepted Answer

A) True 
 B)False

Question 7

A male with an extra X chromosome (XXY)has Turner syndrome.

Accepted Answer

A) True 
 B)False

Question 8

In humans,germ cells are located in

Accepted Answer

A)  bone marrow.
B)  blood.
C)  all cells.
D)  all tissues.
E)  testes and ovaries.F) A) and D)
G) None of the above

Question 9

In meiosis II,cytokinesis results in the production of

Accepted Answer

A)  two haploid daughter cells.
B)  four diploid daughter cells.
C)  four haploid daughter cells.
D)  two diploid daughter cells.
E)  one daughter cell identical to the parent cell that underwent meiosis.F) A) and E)
G) D) and E)

Question 10

The human chromosomes that do not determine gender are

Accepted Answer

A)  not found in pairs.
B)  the "X" and "Y" chromosomes.
C)  autosomes.
D)  called sex chromosomes.
E)  None of the answers are correct.F) D) and E)
G) A) and C)

Question 11

In meiosis,homologous chromosomes separate during

Accepted Answer

A)  prophase I.
B)  prophase II.
C)  anaphase I.
D)  metaphase I.
E)  anaphase II.F) A) and C)
G) A) and D)

Question 12

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.F) C) and D)
G) All of the above

Question 13

Most cultivated bananas are triploid.How could these be generated from diploid parent banana plants?

Accepted Answer

A)  nondisjunction in meiosis followed by normal fertilization
B)  nondisjunction in mitosis followed by normal fertilization
C)  fertilization of a haploid egg by two haploid sperm
D)  fertilization of a haploid egg by a haploid sperm
E)  fertilization of a diploid somatic cell by a haploid spermF) C) and D)
G) A) and B)

Question 14

1n is an abbreviation for

Accepted Answer

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

Question 15

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.F) A) and B)
G) B) and E)

Question 16

What process creates daughter cells with a mixture of paternal and maternal chromosomes?

Accepted Answer

A)  asexual reproduction
B)  semi-conservative replication
C)  random fertilization
D)  independent assortment
E)  mutationF) B) and E)
G) D) and E)

Question 17

Meiosis requires that homologous chromosomes align with one another so that crossing over may occur.

Accepted Answer

A) True 
 B)False

Question 18

If a human zygote has either 45 or 47 chromosomes it was caused by nondisjunction.

Accepted Answer

A) True 
 B)False

Question 19

The Y chromosome

Accepted Answer

A)  is larger than the X chromosome.
B)  contains more genes than the X chromosome.
C)  is the same size as the X chromosome.
D)  is smaller than the X chromosome.
E)  is genetically identical to the X chromosomE.F) B) and D)
G) A) and B)

Question 20

The number of chromosomes in a daughter cell produced by mitosis is the same as the number of chromosomes in the parent cell.

Accepted Answer

A) True 
 B)False

Exam 9: Sexual Reproduction and Meiosis

Genetic variability will not occur among offspring if independent assortment does not occur during anaphase I of meiosis.

Correct AnswerverifiedShow Answer

Fraternal twins (dizygotic) result from the fertilization of

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Most cultivated bananas are triploid.How could these be generated from diploid parent banana plants?

Correct AnswerverifiedShow Answer

A male with an extra X chromosome (XXY)has Turner syndrome.

Correct AnswerverifiedShow Answer

In meiosis II,cytokinesis results in the production of

Correct AnswerverifiedShow Answer

Mitosis does not require that homologous chromosomes align with one another.

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The human chromosomes that do not determine gender are

Correct AnswerverifiedShow Answer

The number of chromosomes in a daughter cell produced by mitosis is the same as the number of chromosomes in the parent cell.

Correct AnswerverifiedShow Answer

If a human zygote has either 45 or 47 chromosomes it was caused by nondisjunction.

Correct AnswerverifiedShow Answer

In meiosis,homologous chromosomes align next to one another during

Correct AnswerverifiedShow Answer

In humans,germ cells are located in

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Meiosis requires that homologous chromosomes align with one another so that crossing over may occur.

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Genetic variability will not occur among offspring if crossing over does not occur during prophase I of meiosis.

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If human gametes were diploid

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What process creates daughter cells with a mixture of paternal and maternal chromosomes?

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The number of chromosomes in a daughter cell produced by meiosis is the same as the number of chromosomes in the parent cell.

Correct AnswerverifiedShow Answer

The Y chromosome

Correct AnswerverifiedShow Answer

1n is an abbreviation for

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There are two divisions in meiosis resulting in four daughter cells.

Correct AnswerverifiedShow Answer

In meiosis,homologous chromosomes separate during

Correct AnswerverifiedShow Answer

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