Question 1

Which of the following statements is true about the life cycle of animals?

Accepted Answer

A)  The gametes are the haploid phase of the animals life cycle.
B)  The gametes are the diploid phase of the life cycle.
C)  The products of the haploid phase of the life cycle are larger than those of the diploid phase.
D)  Meiosis is not a necessary component of the animal life cycle.E) None of the above
F) C) and D) A

Question 2

Identify which event will occur during Prophase I of meiosis but does not occur during prophase of mitosis.

Accepted Answer

A)  bivalents will form
B)  nuclear envelope will dissolve
C)  centrioles will form in animal cells
D)  chromatin will condense into chromosomesE) B) and C)
F) A) and C)

Question 3

The following picture depicts which of the following changes in chromosome structure.

Accepted Answer

A)  deletion
B)  duplication
C)  translocation
D)  aneuploidyE) C) and D)
F) None of the above B

Question 4

If a sperm cell contains 8 chromosomes,it comes from an animal that has ______ chromosomes.

Accepted Answer

A)  4
B)  8
C)  12
D)  16
E)  24F) A) and B)
G) D) and E)

Question 5

Meiosis occurs during all of the following EXCEPT

Accepted Answer

A)  gametogenesis.
B)  oogenesis.
C)  pangenesis.
D)  spermatogenesis.E) None of the above
F) All of the above

Question 6

It could be said that males are able to provide gametes with more genetic diversity than females for reproduction.One main reason would be:

Accepted Answer

A)  Males provide more genes in sperm than females provide in eggs.
B)  Crossing over occurs more often in the formation of sperm than in eggs.
C)  Spermatogenesis in males results in four functional sperm while oogenesis in females results in only one egg and three structures that contain genetic information that is lost when they disintegrate.
D)  Sperm that contain a recombination of genes are usually more successful in fertilizing an egg.E) B) and C)
F) A) and D)

Question 7

During which stage of meiosis are the bivalents arranged along the equator?

Accepted Answer

A)  prophase I
B)  metaphase II
C)  anaphase II
D)  prophase II
E)  metaphase IF) None of the above
G) C) and E)

Question 8

The overall function of meiosis includes all of the following EXCEPT

Accepted Answer

A)  gamete production.
B)  reduction of chromosome number (from 2N to N) .
C)  providing genetic variation in sexually reproducing organisms.
D)  growth of the overall individual.E) All of the above
F) B) and C)

Question 9

There is a species of desert lizard where only females are known to exist-there are no males known.It is nevertheless necessary for two females to court and for one to assume the posture of a male to stimulate the female to produce eggs.No fertilization can occur,and the eggs develop into female lizards.What is the probable evolutionary mechanism for this occurring?

Accepted Answer

A)  The species is probably going extinct.
B)  The desert is relatively uniform and there is little advantage to maintaining variation,but the animal has not been able to completely evolve away from its heritage of sexual reproduction.
C)  This switch in mating behavior is the direct physical reflection of crossing-over.
D)  This is probably an asexual organism attempting to mimic sexual reproduction.E) A) and B)
F) A) and C)

Question 10

Which is NOT true about daughter cells of mitosis or meiosis?

Accepted Answer

A)  In meiosis,daughter cells are haploid.
B)  In meiosis,there are four daughter cells.
C)  In mitosis,there are two daughter cells.
D)  In mitosis,the daughter cells are genetically identical.
E)  In meiosis,the daughter cells are genetically identical.F) B) and E)
G) C) and D)

Question 11

Where in the human male does spermatogenesis occur?

Accepted Answer

A)  ovaries
B)  prostate gland
C)  epididymus
D)  testesE) A) and C)
F) A) and D)

Question 12

Which of the following steps would NOT lead to variation of genetic material?

Accepted Answer

A)  crossing over of homologous chromosomes
B)  crossing over of sister chromatids
C)  the random alignment of the chromosomes during metaphase I
D)  the combination of sperm and egg genesE) All of the above
F) A) and B)

Question 13

Aneuploidy is a change in the number of chromosomes resulting from nondisjunction during meiosis.

Accepted Answer

A) True 
 B)False

Question 14

Extra copies of sex chromosomes are more easily tolerated in humans than extra copies of autosomes.

Accepted Answer

A) True 
 B)False

Question 15

If a cell contains 12 chromosomes at the end of meiosis I,how many chromosomes will the daughter cells contain at the end of meiosis II?

Accepted Answer

A)  3
B)  6
C)  12
D)  24E) B) and C)
F) B) and D) C

Question 16

Which statement is true about the life cycle of plants but not of animals?

Accepted Answer

A)  the gametophyte can be larger than the diploid generation
B)  they use sexual reproduction to produce new offspring
C)  they use meiosis in order to produce the gametes
D)  they will have a haploid and diploid phase of the life cycleE) A) and B)
F) A) and C)

Question 17

Another name for a tetrad is a/an

Accepted Answer

A)  homologue.
B)  bivalent.
C)  öocyte.
D)  gamete.
E)  polar body.F) All of the above
G) A) and C)

Question 18

During which stage of meiosis does crossing-over occur?

Accepted Answer

A)  prophase I of meiosis I
B)  anaphase I of meiosis II
C)  telophase I of meiosis I
D)  prophase II of meiosis II
E)  anaphase II of meiosis IF) All of the above
G) B) and C)

Question 19

Which statement is NOT true about homologues in meiosis I?

Accepted Answer

A)  Homologous chromosomes pair to form a tetrad.
B)  Homologous chromosomes separate and go to different daughter cells.
C)  Each homologue's centromere splits to form two chromosomes.
D)  Homologues exchange genetic material between non-sister chromatids.
E)  Homologues interact with the spindle as if they were one chromosome.F) B) and E)
G) A) and B)

Question 20

Monosomy occurs when an individual has only one of a particular type of chromosome.

Accepted Answer

A) True 
 B)False

Exam 10: Meiosis and Sexual Reproduction

Which of the following statements is true about the life cycle of animals?

Correct Answer
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A

Identify which event will occur during Prophase I of meiosis but does not occur during prophase of mitosis.

Correct Answer
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The following picture depicts which of the following changes in chromosome structure.

Correct Answer
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B

If a sperm cell contains 8 chromosomes,it comes from an animal that has ______ chromosomes.

Correct Answer
verified

Meiosis occurs during all of the following EXCEPT

Correct Answer
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It could be said that males are able to provide gametes with more genetic diversity than females for reproduction.One main reason would be:

Correct Answer
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During which stage of meiosis are the bivalents arranged along the equator?

Correct Answer
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The overall function of meiosis includes all of the following EXCEPT

Correct Answer
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Which is NOT true about daughter cells of mitosis or meiosis?

Correct Answer
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Where in the human male does spermatogenesis occur?

Correct Answer
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Which of the following steps would NOT lead to variation of genetic material?

Correct Answer
verified

Aneuploidy is a change in the number of chromosomes resulting from nondisjunction during meiosis.

Correct Answer
verified

Extra copies of sex chromosomes are more easily tolerated in humans than extra copies of autosomes.

Correct Answer
verified

If a cell contains 12 chromosomes at the end of meiosis I,how many chromosomes will the daughter cells contain at the end of meiosis II?

Correct Answer
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C

Which statement is true about the life cycle of plants but not of animals?

Correct Answer
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Another name for a tetrad is a/an

Correct Answer
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During which stage of meiosis does crossing-over occur?

Correct Answer
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Which statement is NOT true about homologues in meiosis I?

Correct Answer
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Monosomy occurs when an individual has only one of a particular type of chromosome.

Correct Answer
verified

Exam 10: Meiosis and Sexual Reproduction

Which of the following statements is true about the life cycle of animals?

Correct AnswerverifiedA

Identify which event will occur during Prophase I of meiosis but does not occur during prophase of mitosis.

Correct AnswerverifiedShow Answer

The following picture depicts which of the following changes in chromosome structure.

Correct AnswerverifiedB

If a sperm cell contains 8 chromosomes,it comes from an animal that has ______ chromosomes.

Correct AnswerverifiedShow Answer

Meiosis occurs during all of the following EXCEPT

Correct AnswerverifiedShow Answer

It could be said that males are able to provide gametes with more genetic diversity than females for reproduction.One main reason would be:

Correct AnswerverifiedShow Answer

During which stage of meiosis are the bivalents arranged along the equator?

Correct AnswerverifiedShow Answer

The overall function of meiosis includes all of the following EXCEPT

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which is NOT true about daughter cells of mitosis or meiosis?

Correct AnswerverifiedShow Answer

Where in the human male does spermatogenesis occur?

Correct AnswerverifiedShow Answer

Which of the following steps would NOT lead to variation of genetic material?

Correct AnswerverifiedShow Answer

Aneuploidy is a change in the number of chromosomes resulting from nondisjunction during meiosis.

Correct AnswerverifiedShow Answer

Extra copies of sex chromosomes are more easily tolerated in humans than extra copies of autosomes.

Correct AnswerverifiedShow Answer

If a cell contains 12 chromosomes at the end of meiosis I,how many chromosomes will the daughter cells contain at the end of meiosis II?

Correct AnswerverifiedC

Which statement is true about the life cycle of plants but not of animals?

Correct AnswerverifiedShow Answer

Another name for a tetrad is a/an

Correct AnswerverifiedShow Answer

During which stage of meiosis does crossing-over occur?

Correct AnswerverifiedShow Answer

Which statement is NOT true about homologues in meiosis I?

Correct AnswerverifiedShow Answer

Monosomy occurs when an individual has only one of a particular type of chromosome.

Correct AnswerverifiedShow Answer

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A

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B

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C

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