CELL CYCLE QUIZ | EXAMIANS

The cell cycle is controlled in most cells by

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

a series of checkpoints

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

different cells exhibit different control strategies

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At the center of the cell cycle control system is Cdk, a protein that

is only active during mitosis

binds to different cyclins

manufactures growth factors

is phosphorylated to become active

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Which of the following is not a part of a human chromosome in any phase?

Centromere

Centriole

Nucleosome

Histone

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Which phase of mitosis is associated with separation of chromatids?

Prophase

Telophase

Metaphase

Anaphase

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Sequences that correctly describes the cell cycle is

->cytokinesis-> mitosis -> G1 -> S -> G2 ->

-> G1 ->S -> G2 -> cytokinesis -> mitosis ->

-> S -> G2 -> mitosis -> cytokinesis -> G1 ->

-> G1-> G2 -> S -> mitosis -> cytokinesis ->

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Cdks bind with __________ , enabling the Cdks to function as enzymes.

p53

histones

cyclins

MPF

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DNA replication is controlled at which of the following checkpoint?

S

G1

M

G2

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In which of the following phase preparations for genome separation are made?

M

G1

G2

C

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The term homologous chromosomes

is another name for sister chromatids

must be haploid

refers to replications of the same chromosome

means a pair of chromosomes of the same kind, such as sex chromosomes

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

PDGF

Erythroprotein

Interlukin 2

FGF

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