CELL CYCLE QUIZ | EXAMIANS

Which of the following triggers the division of activated T lymphocytes?

FGF

Erythroprotein

Interlukin 2

PDGF

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Which phase of mitosis is associated with separation of chromatids?

Telophase

Prophase

Metaphase

Anaphase

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The cell cycle is controlled in most cells by

different cells exhibit different control strategies

time (after a certain length of time the cell divides)

cell size (when the cell reaches a certain size, it divides)

a series of checkpoints

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How many chromatids are there in a duplicated chromosome?

Three

Two

One

Four

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The centromeres move toward the poles in __________ .

anaphase

prophase

metaphase

interphase

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The G0 phase is

the state of most cells in an animal body

a permanent state of all body cells

another name for interphase

All of these

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Which of the following from a blood clot stimulates the growth of cells in the healing process?

EGF

MPF

PDGF

NGF

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Which of the following statements about mitosis is incorrect?

Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize

Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers

The daughter nuclei are genetically identical to the parent nucleus

Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other

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What structure forms as a network of protein cables during cell division?

Chromatid

Spindle

Aster

Kinetochore

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Which of the following is the normal cell cycle, primarily regulated at checkpoints?

Anaphase, G1 boundary

S-G2 boundary

Metaphase in mitosis

G1-S boundary

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