Question 1

An organism has 8 pairs of chromosomes in each somatic cell. If the sperm and egg did not undergo meiosis, how many chromosomes would be present in a cell that resulted from the fusion of a sperm and egg?

Accepted Answer

A)   8
B)   16
C)   24
D)   32
E)   64F) A) and E)
G) C) and D)

Question 2

During crossing-over

Accepted Answer

A)   chromosomes switch poles.
B)   mitosis becomes meiosis.
C)   chromatin becomes chromosomes.
D)   chromosomes become chromatin.
E)   chromatids exchange segments of genetic material.F) C) and D)
G) A) and C)

Question 3

Which of the following best characterizes apoptosis?

Accepted Answer

A)   Apoptosis is bad for an organism.
B)   The stages of apoptosis are different in each cell type.
C)   Apoptosis happens accidentally to healthy cells.
D)   Apoptosis plays a normal role in development and cancer prevention.
E)   Apoptosis results in our going from a fertilized egg to trillions of cells.F) A) and E)
G) A) and D)

Question 4

During interphase

Accepted Answer

A)   the cell begins to die.
B)   the cell rounds up and detaches from its neighbors.
C)   two nuclei split.
D)   the cell is at rest.
E)   hereditary material duplicates itself.F) A) and D)
G) A) and C)

Question 5

During which stage of the cell cycle do the chromosomes duplicate?

Accepted Answer

A)   prophase
B)   anaphase
C)   interphase
D)   telophase
E)   mitosisF) A) and B)
G) C) and D)

Question 6

The only haploid stage in the animal life cycle is the gamete.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is the correct sequence for the cell cycle?

Accepted Answer

A)   S-M-G1-G2
B)   S-M-G2-G1
C)   S-G1-G1-M
D)   G1-S-G2-M
E)   S-G1-M-G2F) B) and E)
G) All of the above

Question 8

What lines up during metaphase II of meiosis and metaphase of mitosis?

Accepted Answer

A)   Metaphase II of meiosis: individual chromosomes each composed of two sister chromatids Metaphase of mitosis: individual chromosomes each composed of two sister chromatids
B)   Metaphase II of meiosis: homologous chromosomes Metaphase of mitosis: homologous chromosomes
C)   Metaphase II of meiosis: individual chromosomes composed of two sister chromatids Metaphase of mitosis: individual chromosomes each composed of one sister chromatid
D)   Metaphase II of meiosis: individual chromosomes composed of two sister chromatids Metaphase of mitosis: homologous chromosomes
E)   Metaphase II of meiosis: individual chromosomes composed of one sister chromatid Metaphase of mitosis: individual chromosomes composed of one chromatidF) A) and D)
G) B) and C)

Question 9

When does apoptosis occur?

Accepted Answer

A)   during development
B)   during interphase
C)   during mitosis
D)   during meiosis
E)   during injury repairF) C) and E)
G) A) and E)

Question 10

Meiosis results in a change in chromosome number indicated by

Accepted Answer

A)   2n to 2n.
B)   2n to n.
C)   n to 2n.
D)   n to n.
E)   2n to 2n in diploid organisms, n to n in haploid.F) A) and E)
G) A) and D)

Question 11

If a crayfish has 200 total chromosomes in its body cells (not ovaries or testes)

Accepted Answer

A)   any 100 could have been from its father and any 100 from its mother.
B)   they would consist of 100 pairs with one of each pair from the father, one of each pair from the mother.
C)   as many as none to 200 came from the father and conversely, from 200 to none would have come from the mother.
D)   50 pairs or 100 total would come from the father and 50 pairs from the mother.
E)   all 200 come from the mother in a female crayfish, all 200 from the father in a male crayfish.F) B) and C)
G) All of the above

Question 12

It is the secondary oocyte and not the egg that the sperm fertilizes to form a diploid organism.

Accepted Answer

A) True 
 B)False

Question 13

Replication of the DNA for meiosis occurs between telophase I and prophase II.

Accepted Answer

A) True 
 B)False

Question 14

The only function of apoptosis is to destroy healthy cells when they become damaged or infected.

Accepted Answer

A) True 
 B)False

Exam 5: Cell Division

During which stage of the cell cycle do the chromosomes duplicate?

Correct Answer
verified

What lines up during metaphase II of meiosis and metaphase of mitosis?

Correct Answer
verified

During crossing-over

Correct Answer
verified

An organism has 8 pairs of chromosomes in each somatic cell. If the sperm and egg did not undergo meiosis, how many chromosomes would be present in a cell that resulted from the fusion of a sperm and egg?

Correct Answer
verified

It is the secondary oocyte and not the egg that the sperm fertilizes to form a diploid organism.

Correct Answer
verified

The only function of apoptosis is to destroy healthy cells when they become damaged or infected.

Correct Answer
verified

Meiosis results in a change in chromosome number indicated by

Correct Answer
verified

Replication of the DNA for meiosis occurs between telophase I and prophase II.

Correct Answer
verified

When does apoptosis occur?

Correct Answer
verified

During interphase

Correct Answer
verified

If a crayfish has 200 total chromosomes in its body cells (not ovaries or testes)

Correct Answer
verified

Which of the following is the correct sequence for the cell cycle?

Correct Answer
verified

Which of the following best characterizes apoptosis?

Correct Answer
verified

The only haploid stage in the animal life cycle is the gamete.

Correct Answer
verified

Exam 5: Cell Division

During which stage of the cell cycle do the chromosomes duplicate?

Correct AnswerverifiedShow Answer

What lines up during metaphase II of meiosis and metaphase of mitosis?

Correct AnswerverifiedShow Answer

During crossing-over

Correct AnswerverifiedShow Answer

An organism has 8 pairs of chromosomes in each somatic cell. If the sperm and egg did not undergo meiosis, how many chromosomes would be present in a cell that resulted from the fusion of a sperm and egg?

Correct AnswerverifiedShow Answer

It is the secondary oocyte and not the egg that the sperm fertilizes to form a diploid organism.

Correct AnswerverifiedShow Answer

The only function of apoptosis is to destroy healthy cells when they become damaged or infected.

Correct AnswerverifiedShow Answer

Meiosis results in a change in chromosome number indicated by

Correct AnswerverifiedShow Answer

Replication of the DNA for meiosis occurs between telophase I and prophase II.

Correct AnswerverifiedShow Answer

When does apoptosis occur?

Correct AnswerverifiedShow Answer

During interphase

Correct AnswerverifiedShow Answer

If a crayfish has 200 total chromosomes in its body cells (not ovaries or testes)

Correct AnswerverifiedShow Answer

Which of the following is the correct sequence for the cell cycle?

Correct AnswerverifiedShow Answer

Which of the following best characterizes apoptosis?

Correct AnswerverifiedShow Answer

The only haploid stage in the animal life cycle is the gamete.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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