Question 1

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

Accepted Answer

A) True 
 B)False  True

Question 2

In meiosis,DNA replicates during:

Accepted Answer

A)  Prophase one
B)  Prophase two
C)  Interphase two
D)  Interphase one
E)  Both interphase two and interphase one are correctF) B) and C)
G) C) and D) D

Question 3

If a woman in her late forties wants to have a baby and seeks medical advice,she would most likely be advised that she is at much greater risk of having a baby with Klinefelter syndrome.

Accepted Answer

A) True 
 B)False

Question 4

When chromosomes fail to separate at either the first or second meiotic division,this:

Accepted Answer

A)  Is known as crossing over
B)  Results in a sperm or egg cell with an abnormal number of chromosomes
C)  Is known as translocation
D)  Results in a failure to produce gametes
E)  Results in arrest during meiosisF) A) and B)
G) A) and C)

Question 5

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

Accepted Answer

A)  AABB
B)  A
C)  AB
D)  B
E)  AABF) B) and C)
G) A) and E)

Question 6

A hybrid plant becoming a new species in a generation is an example of:

Accepted Answer

A)  Gradualism
B)  Artificial selection
C)  Genetic drift
D)  Stabilizing selectionE) C) and D)
F) B) and D)

Question 7

The chromosomal designation for a human female is:

Accepted Answer

A)  XYY
B)  XY
C)  YY
D)  XX
E)  None are correctF) B) and E)
G) A) and B)

Question 8

Fraternal (nonidentical)twins result from two simultaneous fertilizations,which form two separate zygotes.

Accepted Answer

A) True 
 B)False

Question 9

The Y chromosome is:

Accepted Answer

A)  Larger than the X chromosome
B)  Contains more genes than the X chromosome
C)  The same size as the X chromosome
D)  Smaller than the X chromosome
E)  Genetically identical to the X chromosomeF) A) and D)
G) A) and E)

Question 10

The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is:

Accepted Answer

A)  Parthenogenesis
B)  Apomixis
C)  Mitosis
D)  Conjugation
E)  ReplicationF) B) and C)
G) C) and D)

Question 11

Meiotic cell division replicates a cell's DNA ____________ and then divides ______________.

Accepted Answer

A)  Twice, once
B)  Once, twice
C)  Twice, twice
D)  Once, once
E)  None are correctF) A) and E)
G) B) and D) B

Question 12

What is an advantage of sexual reproduction over asexual reproduction?

Accepted Answer

A)  Genetic variability during an ecological disaster
B)  Genetic variability when the environment is stable
C)  Faster reproduction
D)  Requirement of less energy
E)  Simpler form of reproductionF) D) and E)
G) B) and C)

Question 13

For a plant to produce diploid sperm and egg ____ must occur during _____.

Accepted Answer

A)  Non-disjunction, mitosis
B)  Independent assortment, meiosis
C)  Non-disjunction, meiosis
D)  Independent assortment, mitosis
E)  Independent assortment, fertilizationF) B) and D)
G) None of the above

Question 14

If a human zygote has either 45 or 47 chromosomes it might be assumed that this was due to random fertilization.

Accepted Answer

A) True 
 B)False

Question 15

Chromosomes that look alike and carry the same sequence of genes for the same traits are:

Accepted Answer

A)  The X and Y chromosome
B)  All the autosomes
C)  Homologous chromosomes
D)  Found in females only
E)  Found in males onlyF) A) and E)
G) B) and C)

Question 16

Which of the following will occur in meiosis but not in mitosis?

Accepted Answer

A)  Metaphase
B)  Cytokinesis
C)  Crossing over
D)  DNA replication
E)  Chromosome condensationF) B) and C)
G) A) and E)

Question 17

In meiosis two,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 meiosisF) A) and B)
G) A) and C)

Question 18

In plants,diploid parental plants called sporophytes produce haploid spores by:

Accepted Answer

A)  Meiosis
B)  Mitosis
C)  Fertilization
D)  Recombination
E)  Non-disjunctionF) B) and C)
G) None of the above

Question 19

A zygote is:

Accepted Answer

A)  A haploid cell
B)  A gamete
C)  A product of meiosis
D)  All are correct
E)  A diploid cellF) D) and E)
G) B) and E)

Question 20

The process by which homologous chromosomes exchange genetic material:

Accepted Answer

A)  Is crossing over
B)  Is random fertilization
C)  Occurs only in bacteria
D)  Occurs only in animals
E)  Is independent assortmentF) None of the above
G) C) and E)

Exam 9: Sexual Reproduction and Meiosis

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

Correct AnswerverifiedTrue

In meiosis,DNA replicates during:

Correct AnswerverifiedD

If a woman in her late forties wants to have a baby and seeks medical advice,she would most likely be advised that she is at much greater risk of having a baby with Klinefelter syndrome.

Correct AnswerverifiedShow Answer

When chromosomes fail to separate at either the first or second meiotic division,this:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A hybrid plant becoming a new species in a generation is an example of:

Correct AnswerverifiedShow Answer

The chromosomal designation for a human female is:

Correct AnswerverifiedShow Answer

Fraternal (nonidentical)twins result from two simultaneous fertilizations,which form two separate zygotes.

Correct AnswerverifiedShow Answer

The Y chromosome is:

Correct AnswerverifiedShow Answer

The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is:

Correct AnswerverifiedShow Answer

Meiotic cell division replicates a cell's DNA ____________ and then divides ______________.

Correct AnswerverifiedB

What is an advantage of sexual reproduction over asexual reproduction?

Correct AnswerverifiedShow Answer

For a plant to produce diploid sperm and egg ____ must occur during _____.

Correct AnswerverifiedShow Answer

If a human zygote has either 45 or 47 chromosomes it might be assumed that this was due to random fertilization.

Correct AnswerverifiedShow Answer

Chromosomes that look alike and carry the same sequence of genes for the same traits are:

Correct AnswerverifiedShow Answer

Which of the following will occur in meiosis but not in mitosis?

Correct AnswerverifiedShow Answer

In meiosis two,cytokinesis results in the production of:

Correct AnswerverifiedShow Answer

In plants,diploid parental plants called sporophytes produce haploid spores by:

Correct AnswerverifiedShow Answer

A zygote is:

Correct AnswerverifiedShow Answer

The process by which homologous chromosomes exchange genetic material:

Correct AnswerverifiedShow Answer

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True

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D

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Meiotic cell division replicates a cell's DNA and then divides __.

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B

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For a plant to produce diploid sperm and egg must occur during _.

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