Cell cycle Flashcards

1
Q

What are all the phases of the Cell cycle

A

G1, S,G2 and mitotic (M) phase

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2
Q

What is the function of the G1 phase of the cell cycle?

A

the cell grows in preparation for DNA replication

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3
Q

What is the function of the S phase of the cell cycle?

A

Replication of DNA (S stands for synthesis)

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4
Q

What is the function of the G2 phase of the cell cycle?

A

prevents cells with damaged DNA, lasting from the G1 and S phases or generated in G2, from undergoing mitosis

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5
Q

What are the 5 stages of mitosis?

A
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
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6
Q

Describe prophase

A

Chromosomes condense
Nuclear membrane disappears
Spindle fibres form from the centriole

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7
Q

Describe Metaphase

A

Chromosomes aligned at the equator of the cell
Attached by fibre to each centriole
Maximum condensation of chromosome

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8
Q

Describe Anaphase

A

Sister chromatids separate at centromere
They separate longitudinally
Chromatids move to opposite ends of cell

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9
Q

Describe Metaphase

A

New nuclear membranes form

Each cell contains 46 chromosomes (diploid)

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10
Q

Describe Cytokinesis

A

Cytoplasm separates

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