Question 1

Which is NOT a correct association?

Accepted Answer

A)  cytokinesis-division of the cytoplasm
B)  centromere-point where sister chromatids remain attached
C)  haploid-one of each chromosome
D)  sister chromatids-two identical chromosome strands still attached at the centromere
E)  mitosis-when a cell duplicates and then divides twice to reduce chromosome number by half

Question 2

The nuclear membrane reappears in mitosis during

Accepted Answer

A)  interphase.
B)  prophase.
C)  metaphase.
D)  anaphase.
E)  telophase.

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.

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is not a reason why two children born to the same parents (not identical twins) are unlikely to have the same genetic makeup?

Accepted Answer

A)  Crossing-over recombines portions of sister chromatids.
B)  Fertilization provides a new pairing of chromosomes.
C)  Each sperm or egg has a random assortment of chromosomes,half from each pair.
D)  Chromosomes align themselves independently during meiosis I.
E)  Since they are produced at different times,all sperm will be genetically different from all other sperm.

Question 6

You are looking at a cell under the microscope,and see what appears to be several "X" structures being pulled to each side of the cell.What stage of meiosis are you looking at?

Accepted Answer

A)  prophase I
B)  prophase II
C)  metaphase I
D)  anaphase I
E)  anaphase II

Question 7

Microtubules found in spindle fibers are capable of assembling and disassembling.

Accepted Answer

A) True 
 B)False

Question 8

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)  S-G2-M-G1
E)  S-G1-M-G2

Question 9

Which of the following statements is NOT true about oogenesis in humans?

Accepted Answer

A)  It occurs in the ovary.
B)  The egg will contain 23 chromosomes.
C)  Four equal size daughter cells will form.
D)  At least two nonfunctional polar bodies will form.
E)  Once started,it will not necessarily go to completion.

Question 10

Following a cut or scrape,which process repairs your skin?

Accepted Answer

A)  meiosis
B)  meiosis and mitosis
C)  mitosis
D)  mitosis and apoptosis
E)  apoptosis

Question 11

Which of the following are genetically identical?

Accepted Answer

A)  both members of a pair of chromosomes
B)  sister chromatids
C)  the mother's and the father's chromosomes
D)  the mother's and her child's chromosomes
E)  the father's and his child's chromosomes

Question 12

There are two sets of caspases operating during apoptosis.Which of the following statements does not correctly characterize the role of these caspases?

Accepted Answer

A)  One set of caspases are called initators because they receive a signal to activate the second set.
B)  One set of capsases are called executioners because they dismantle the cell.
C)  Caspases can be unleashed by either internal or external signals.
D)  Caspases are normally active during the entire cell cycle.
E)  Caspases are responsible for the typical stages a cell goes through during apoptosis.

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

The mitotic stage of cell division consists of

Accepted Answer

A)  DNA synthesis and DNA degradation.
B)  mitosis and cytokinesis.
C)  duplication and division.
D)  cell growth and cell death.
E)  meiosis and mitosis.

Question 15

The genes that code for the proteins of the signaling pathway could be classified as

Accepted Answer

A)  proto-oncogenes.
B)  caspase genes.
C)  DNA repair genes.
D)  tumor suppressor genes.
E)  cyclin genes.

Question 16

If the total number of chromosomes in a cell is six,then after mitosis there will be

Accepted Answer

A)  six chromosomes in each daughter cell.
B)  three chromosomes in each daughter cell.
C)  12 chromosomes in each daughter cell.
D)  two chromosomes in each daughter cell.
E)  three chromosomes in one daughter cell and six chromosomes in the other cell.

Question 17

List in order the stages of the cell cycle.

Accepted Answer

Interphase - prophas...

Question 18

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.

Question 19

During what stage do homologous chromosomes separate from each other?

Accepted Answer

A)  prophase
B)  anaphase I
C)  anaphase II
D)  metaphase I
E)  metaphase II

Question 20

Indicate the portions of the cell cycle that contain checkpoints and what the checkpoint controls.

Accepted Answer

G₁ contains the first checkpoint.This one...

Exam 5: Cell Division

Which of the following is not a reason why two children born to the same parents (not identical twins) are unlikely to have the same genetic makeup?

Correct AnswerverifiedShow Answer

Which is NOT a correct association?

Correct AnswerverifiedShow Answer

List in order the stages of the cell cycle.

Correct AnswerverifiedInterphase - prophas...View AnswerShow Answer

If the total number of chromosomes in a cell is six,then after mitosis there will be

Correct AnswerverifiedShow Answer

Which of the following are genetically identical?

Correct AnswerverifiedShow Answer

During crossing-over,

Correct AnswerverifiedShow Answer

During what stage do homologous chromosomes separate from each other?

Correct AnswerverifiedShow Answer

The mitotic stage of cell division consists of

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

There are two sets of caspases operating during apoptosis.Which of the following statements does not correctly characterize the role of these caspases?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

You are looking at a cell under the microscope,and see what appears to be several "X" structures being pulled to each side of the cell.What stage of meiosis are you looking at?

Correct AnswerverifiedShow Answer

Indicate the portions of the cell cycle that contain checkpoints and what the checkpoint controls.

Correct AnswerverifiedG1 contains the first checkpoint.This one...View AnswerShow Answer

Which of the following statements is NOT true about oogenesis in humans?

Correct AnswerverifiedShow Answer

The nuclear membrane reappears in mitosis during

Correct AnswerverifiedShow Answer

Microtubules found in spindle fibers are capable of assembling and disassembling.

Correct AnswerverifiedShow Answer

Following a cut or scrape,which process repairs your skin?

Correct AnswerverifiedShow Answer

The genes that code for the proteins of the signaling pathway could be classified as

Correct AnswerverifiedShow Answer

Which of the following best characterizes apoptosis?

Correct AnswerverifiedShow Answer

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Interphase - prophas...
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G₁ contains the first checkpoint.This one...
View Answer

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