Question 1

Put the following steps in the procedure for producing a karyotype in the correct order.
I.Cells are visualized under the microscope.
II.Cells are stimulated to divide.
III.Homologues are organized into sets by matching size and banding patterns.
IV.The cells are exposed to a hypotonic solution.
V.Cells are stained and placed on a microscope slide.

Accepted Answer

A)  I,II,IV,V,III
B)  II,IV,V,I,III
C)  IV,II,V,I,III
D)  IV,V,II,I,III
E)  II,IV,I,V,IIIF) A) and D)
G) A) and C)

Question 2

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the red arrow is pointing?

Accepted Answer

A)  At this point in the cell cycle,the cell is committing to divide mitotically
B)  At this point in the cell cycle,DNA has already been replicated correctly
C)  At this point in the cell cycle,chromosomes have properly aligned on the metaphase plate and are beginning to separate
D)  At this point in the cycle the cell is determining if environmental conditions are favorable
E)  At this point in the cycle the cell is continuing to grow and make abundant tubulin proteinsF) A) and E)
G) A) and D)

Question 3

Which of the following is NOT a part of the mitotic spindle apparatus in plants?

Accepted Answer

A)  centrosome
B)  centrioles
C)  tubulin proteins
D)  kinetochore microtubules
E)  astral microtubulesF) B) and D)
G) A) and D)

Question 4

A female who inherits an extra X chromosome will have

Accepted Answer

A)  Klinefelter syndrome.
B)  Turner syndrome.
C)  Down syndrome.
D)  Triple X syndrome.
E)  Edward syndromE.F) A) and B)
G) B) and E)

Question 5

Sexual life cycles include both haploid and diploid stages.

Accepted Answer

A) True 
 B)False

Question 6

Mitotic cell division is never used by organisms as a means of reproduction.

Accepted Answer

A) True 
 B)False

Question 7

Sister chromatids separate during

Accepted Answer

A)  anaphase of meiosis I.
B)  metaphase of meiosis I.
C)  metaphase of meiosis II.
D)  telophase of meiosis I.
E)  anaphase of meiosis II.F) None of the above
G) B) and C)

Question 8

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the blue arrow is pointing?

Accepted Answer

A)  At this point in the cell cycle,the cell has determined that the DNA is intact,that environmental conditions are favorable,and it is preparing for DNA replication
B)  At this point in the cell cycle,chromosomes have properly aligned on the metaphase plate and are beginning to separate
C)  At this point in the cell cycle,DNA has already been replicated and divided into two daughter nuclei
D)  At this point in the cycle the cell is determining if environmental conditions are favorable for growth and proliferation
E)  At this point in the cycle the cell is continuing to grow and make abundant tubulin proteinsF) A) and B)
G) B) and D)

Question 9

Chromosomes are replicated during the ______ phase.

Accepted Answer

A)  G1
B)  G2
C)  S
D)  M
E)  meta-F) B) and E)
G) A) and E)

Question 10

A diploid queen honeybee produces eggs by meiosis.Some of these eggs are never fertilized,while the rest are.These unfertilized eggs develop into haploid male honeybees.This can be an example of sexual reproduction.

Accepted Answer

A) True 
 B)False

Question 11

A chromosome with the centromere located two-thirds of the distance from its end could be classified as

Accepted Answer

A)  metacentric.
B)  submetacentric.
C)  acrocentriC.
D)  telocentric.
E)  either submetacentric or acrocentric.F) All of the above
G) B) and E)

Question 12

Meiosis I produces ________ cells,and meiosis II produces _________ cells.

Accepted Answer

A)  two diploid,two haploid
B)  two diploid,4 haploid
C)  two haploid,4 haploid
D)  two haploid,two haploid
E)  two somatic,two gameticF) All of the above
G) B) and E)

Question 13

Consider an organism whose diploid karyotype shows it to have a total of 60 chromosomes.How many chromosomes would be contained in the sperm of this organism?

Accepted Answer

A)  23
B)  30
C)  46
D)  60
E)  90F) C) and D)
G) B) and D)

Question 14

A mutation occurs in a gene that encodes a G1-cyclin,such that the protein is unable to bind to its CDK.How will this affect the cell cycle?

Accepted Answer

A)  The cell will be stuck in G1 and will not advance through the cell cycle.
B)  The cell will replicate its DNA,but will be unable to progress through mitosis.
C)  The cell will rapidly replicate its DNA and progress through mitosis,causing uncontrolled cell division,and may lead to cancer.
D)  The cell will proceed through mitosis without replicating its DNA.
E)  The cell will proceed to the S phase,and DNA repair enzymes will repair the mutated cyclin when it replicates the DNA.F) C) and E)
G) A) and D)

Question 15

When a gamete that is lacking a sex chromosome due to nondisjunction has fused with a gamete carrying an X chromosome,this type of abnormality leads to ________.

Accepted Answer

A)  Triple X syndrome
B)  Down Syndrome
C)  Edward Syndrome
D)  Turner syndrome
E)  Klinefelter SyndromeF) C) and E)
G) All of the above

Question 16

Which of the following statements is FALSE concerning sister chromatids?

Accepted Answer

A)  The formation of sister chromatids doubles the amount of DNA in a cell.
B)  Sister chromatids consist of two identical copies of a single homologue.
C)  Sister chromatids are held together at the centromere by cohesin proteins.
D)  Sister chromatids are formed during the S phase of the cell cycle.
E)  Sister chromatids separate during anaphase I of meiosis.F) A) and C)
G) D) and E)

Question 17

Which of the following statements regarding the G1 (first gap) phase of the eukaryotic cell cycle is NOT true?

Accepted Answer

A)  Most cells spend the majority of their lives in the G1 phase of the cell cycle.
B)  Cells that are terminally differentiated and will not divide mitotically might exit the G1 phase and enter the G0 phase.
C)  If environmental conditions are favorable during the G1 phase,G1 cyclins are degraded causing the cell to prepare to replicate its DNA.
D)  The G1 phase is only part of interphase.
E)  All of these are TRUEF) A) and B)
G) B) and E)

Question 18

If a cell contains 20 chromosomes during G2,it will have 40 chromosomes during S.

Accepted Answer

A) True 
 B)False

Question 19

A species that has three pairs of homologous chromosomes can have how many different combinations of chromosomes in the gametes?

Accepted Answer

A)  3
B)  6
C)  8
D)  27
E)  64F) A) and E)
G) B) and D)

Question 20

How are sister chromatids connected to each other?

Accepted Answer

A)  Through complementary base pairing of DNA at the centromere
B)  Through centromere proteins that are attracted to each other by opposite charges
C)  Through activated cyclin/CDK complexes
D)  Through the centrioles
E)  Through cohesin proteinsF) C) and E)
G) B) and E)

Exam 13: The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Which of the following is NOT a part of the mitotic spindle apparatus in plants?

Correct Answer
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Correct Answer
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A female who inherits an extra X chromosome will have

Correct Answer
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A species that has three pairs of homologous chromosomes can have how many different combinations of chromosomes in the gametes?

Correct Answer
verified

Consider an organism whose diploid karyotype shows it to have a total of 60 chromosomes.How many chromosomes would be contained in the sperm of this organism?

Correct Answer
verified

Sister chromatids separate during

Correct Answer
verified

Which of the following statements is FALSE concerning sister chromatids?

Correct Answer
verified

Mitotic cell division is never used by organisms as a means of reproduction.

Correct Answer
verified

Chromosomes are replicated during the ______ phase.

Correct Answer
verified

A mutation occurs in a gene that encodes a G1-cyclin,such that the protein is unable to bind to its CDK.How will this affect the cell cycle?

Correct Answer
verified

Meiosis I produces cells,and meiosis II produces _ cells.

Correct Answer
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The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the blue arrow is pointing?

Correct Answer
verified

A chromosome with the centromere located two-thirds of the distance from its end could be classified as

Correct Answer
verified

If a cell contains 20 chromosomes during G2,it will have 40 chromosomes during S.

Correct Answer
verified

Which of the following statements regarding the G1 (first gap) phase of the eukaryotic cell cycle is NOT true?

Correct Answer
verified

How are sister chromatids connected to each other?

Correct Answer
verified

A diploid queen honeybee produces eggs by meiosis.Some of these eggs are never fertilized,while the rest are.These unfertilized eggs develop into haploid male honeybees.This can be an example of sexual reproduction.

Correct Answer
verified

When a gamete that is lacking a sex chromosome due to nondisjunction has fused with a gamete carrying an X chromosome,this type of abnormality leads to ________.

Correct Answer
verified

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the red arrow is pointing?

Correct Answer
verified

Sexual life cycles include both haploid and diploid stages.

Correct Answer
verified

Exam 13: The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Which of the following is NOT a part of the mitotic spindle apparatus in plants?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A female who inherits an extra X chromosome will have

Correct AnswerverifiedShow Answer

A species that has three pairs of homologous chromosomes can have how many different combinations of chromosomes in the gametes?

Correct AnswerverifiedShow Answer

Consider an organism whose diploid karyotype shows it to have a total of 60 chromosomes.How many chromosomes would be contained in the sperm of this organism?

Correct AnswerverifiedShow Answer

Sister chromatids separate during

Correct AnswerverifiedShow Answer

Which of the following statements is FALSE concerning sister chromatids?

Correct AnswerverifiedShow Answer

Mitotic cell division is never used by organisms as a means of reproduction.

Correct AnswerverifiedShow Answer

Chromosomes are replicated during the ______ phase.

Correct AnswerverifiedShow Answer

A mutation occurs in a gene that encodes a G1-cyclin,such that the protein is unable to bind to its CDK.How will this affect the cell cycle?

Correct AnswerverifiedShow Answer

Meiosis I produces ________ cells,and meiosis II produces _________ cells.

Correct AnswerverifiedShow Answer

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the blue arrow is pointing?

Correct AnswerverifiedShow Answer

A chromosome with the centromere located two-thirds of the distance from its end could be classified as

Correct AnswerverifiedShow Answer

If a cell contains 20 chromosomes during G2,it will have 40 chromosomes during S.

Correct AnswerverifiedShow Answer

Which of the following statements regarding the G1 (first gap) phase of the eukaryotic cell cycle is NOT true?

Correct AnswerverifiedShow Answer

How are sister chromatids connected to each other?

Correct AnswerverifiedShow Answer

A diploid queen honeybee produces eggs by meiosis.Some of these eggs are never fertilized,while the rest are.These unfertilized eggs develop into haploid male honeybees.This can be an example of sexual reproduction.

Correct AnswerverifiedShow Answer

When a gamete that is lacking a sex chromosome due to nondisjunction has fused with a gamete carrying an X chromosome,this type of abnormality leads to ________.

Correct AnswerverifiedShow Answer

The following graph represents the concentration of cyclins over the course of the cell cycle.Which of the following statements is TRUE regarding the phase of the cell cycle where the red arrow is pointing?

Correct AnswerverifiedShow Answer

Sexual life cycles include both haploid and diploid stages.

Correct AnswerverifiedShow Answer

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Meiosis I produces cells,and meiosis II produces _ cells.

Correct Answer
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