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Which of the following is not a stage of mitosis?


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

F) B) and C)
G) A) and C)

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How do proto-oncogenes affect the cell cycle?


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

F) B) and C)
G) A) and B)

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


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

F) B) and C)
G) C) and E)

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


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

F) None of the above
G) A) and E)

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

A) True
B) False

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


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

F) D) and E)
G) B) and E)

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

A) True
B) False

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

A) True
B) False

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Which of the following is not a stage of interphase?


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

E) A) and B)
F) B) and D)

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What structures are divided during cytokinesis?


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

F) B) and C)
G) A) and C)

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Genetic variation is useful to evolution because environments change.

A) True
B) False

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How are mitosis and cytokinesis alike?


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

F) C) and E)
G) A) and B)

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How are Jacobs and Klinefelter syndromes alike?


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.

F) None of the above
G) B) and E)

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Sexual reproduction introduces more genetic variation than does asexual reproduction.

A) True
B) False

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


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

F) B) and C)
G) A) and C)

Correct Answer

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

A) True
B) False

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

A) True
B) False

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Two sister chromatids are held together at the


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

F) C) and D)
G) D) and E)

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


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

F) A) and E)
G) B) and E)

Correct Answer

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


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

F) C) and D)
G) A) and E)

Correct Answer

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