Question 1

How do proto-oncogenes affect the cell cycle?

Accepted Answer

A)  stimulate it 
B)  inhibit it 
C)  they do not affect the cell cycle 
D)  they cause it to temporarily pause and then rapidly accelerate 
E)  they rapidly accelerate it and then cause it to pause 
A)  stimulate it 
B)  inhibit it 
C)  they do not affect the cell cycle 
D)  they cause it to temporarily pause and then rapidly accelerate 
E)  they rapidly accelerate it and then cause it to pause

Question 2

Which of the following is not a stage of mitosis?

Accepted Answer

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

Question 3

Which of the following is not a stage of interphase?

Accepted Answer

A)  cytokinesis 
B)  G1 
C)  G2 
D)  S 
A)  cytokinesis 
B)  G1 
C)  G2 
D)  S

Question 4

When does a chromosome go from one chromatid to two sister chromatids?

Accepted Answer

A)  during G1 of interphase 
B)  during S of interphase 
C)  during G2 of interphase 
D)  during mitosis 
E)  during cytokinesis 
A)  during G1 of interphase 
B)  during S of interphase 
C)  during G2 of interphase 
D)  during mitosis 
E)  during cytokinesis

Question 5

How are Jacobs and Klinefelter syndromes alike?

Accepted Answer

A)  Both have only two X chromosomes. 
B)  Both have only two Y chromosomes. 
C)  Both have three sex chromosomes. 
D)  Both have one sex chromosome. 
E)  Both have only 45 chromosomes. 
A)  Both have only two X chromosomes. 
B)  Both have only two Y chromosomes. 
C)  Both have three sex chromosomes. 
D)  Both have one sex chromosome. 
E)  Both have only 45 chromosomes.

Question 6

Two sister chromatids are held together at the

Accepted Answer

A)  centromere. 
B)  spindle. 
C)  aster. 
D)  telomere. 
E)  autosome. 
A)  centromere. 
B)  spindle. 
C)  aster. 
D)  telomere. 
E)  autosome.

Question 7

Following mitosis, the daughter cells are identical to the parent cell.

Accepted Answer

A) True 
 B)False

Question 8

How are mitosis and cytokinesis alike?

Accepted Answer

A)  Both involve the nucleus. 
B)  Both involve mitochondria. 
C)  Both involve division. 
D)  Both involve apoptosis. 
E)  Both involve DNA synthesis. 
A)  Both involve the nucleus. 
B)  Both involve mitochondria. 
C)  Both involve division. 
D)  Both involve apoptosis. 
E)  Both involve DNA synthesis.

Question 9

If an organism has 4 pairs of chromosomes, after meiosis it will contain how many chromosomes?

Accepted Answer

A)  2 
B)  4 
C)  8 
D)  16 
E)  32 
A)  2 
B)  4 
C)  8 
D)  16 
E)  32

Question 10

If an organism does not undergo meiosis, then it cannot undergo sexual reproduction.

Accepted Answer

A) True 
 B)False

Question 11

If the secondary oocyte is not fertilized, it does not complete meiosis II.

Accepted Answer

A) True 
 B)False

Question 12

Sexual reproduction introduces more genetic variation than does asexual reproduction.

Accepted Answer

A) True 
 B)False

Question 13

In a translocation, all of the DNA is present, and there is only one copy of each piece.

Accepted Answer

A) True 
 B)False

Question 14

Independent alignment creates genetic variation. This is associated with which stage of meiosis?

Accepted Answer

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

Question 15

If a cell has 4 pairs of chromosomes, after mitosis each daughter cell will have how many chromosomes?

Accepted Answer

A)  2 
B)  4 
C)  8 
D)  16 
E)  32 
A)  2 
B)  4 
C)  8 
D)  16 
E)  32

Question 16

What structures are divided during cytokinesis?

Accepted Answer

A)  cytoplasm and organelles 
B)  cytoplasm and chromosomes 
C)  cell membrane and chromatin 
D)  nucleus 
E)  none of these 
A)  cytoplasm and organelles 
B)  cytoplasm and chromosomes 
C)  cell membrane and chromatin 
D)  nucleus 
E)  none of these

Question 17

There is no mechanism to ensure the exact partitioning of the cytoplasm as there is of the DNA.

Accepted Answer

A) True 
 B)False

Question 18

Which type of change in chromosome structure characterizes cri du chat syndrome?

Accepted Answer

A)  deletion 
B)  duplication 
C)  translocation 
D)  inversion 
E)  trisomy 
A)  deletion 
B)  duplication 
C)  translocation 
D)  inversion 
E)  trisomy

Question 19

In meiosis there are how many divisions and how many daughter cells?

Accepted Answer

A)  1, 2 
B)  1, 4 
C)  2, 2 
D)  2, 4 
E)  2, 8 
A)  1, 2 
B)  1, 4 
C)  2, 2 
D)  2, 4 
E)  2, 8

Question 20

Genetic variation is useful to evolution because environments change.

Accepted Answer

A) True 
 B)False

Exam 18: Patterns of Chromosome Inheritance

How do proto-oncogenes affect the cell cycle?

Which of the following is not a stage of mitosis?

Which of the following is not a stage of interphase?

When does a chromosome go from one chromatid to two sister chromatids?

How are Jacobs and Klinefelter syndromes alike?

Two sister chromatids are held together at the

Following mitosis, the daughter cells are identical to the parent cell.

How are mitosis and cytokinesis alike?

If an organism has 4 pairs of chromosomes, after meiosis it will contain how many chromosomes?

If an organism does not undergo meiosis, then it cannot undergo sexual reproduction.

If the secondary oocyte is not fertilized, it does not complete meiosis II.

Sexual reproduction introduces more genetic variation than does asexual reproduction.

In a translocation, all of the DNA is present, and there is only one copy of each piece.

Independent alignment creates genetic variation. This is associated with which stage of meiosis?

If a cell has 4 pairs of chromosomes, after mitosis each daughter cell will have how many chromosomes?

What structures are divided during cytokinesis?

There is no mechanism to ensure the exact partitioning of the cytoplasm as there is of the DNA.

Which type of change in chromosome structure characterizes cri du chat syndrome?

In meiosis there are how many divisions and how many daughter cells?

Genetic variation is useful to evolution because environments change.

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