Mitosis Flashcards

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0
Q

G1

A

Gap phase #1 (1st growing phase)

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1
Q

M phase

A

Mitosis (nuclear division) and cytokinesis (cellular division)

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2
Q

S Phase

A

Synthesis phase (replicating DNA)

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3
Q

G2 Phase

A

Gap phase #2

Growing and getting ready to divide

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4
Q

Interphase

A

G1, S, G2

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5
Q

Prophase/Prometaphase

A

Chromosomes condense
Nuclear envelope breaks down
Mitotic spindle (microtubules) forms
Kinetochore (protein structure at centromere) connects chromosomes to microtubules
Centrosomes (organizing centers) form at opposite sides of cells

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6
Q

Metaphase

A

Centromeres line up at metaphase plate

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7
Q

Anaphase

A

Sister chromatids separate

Kinetochores pull chromosomes along microtubules

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8
Q

Telophase

A

Two daughter nuclei form

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9
Q

Cytokinesis

A

Cytoplasm is divided

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10
Q

Cell cycle control

A

Cyclins (fluctuating concentration) and cyclin dependent kinases (Cdks; steady concentration): regulatory proteins
Both cyclins and Cdks in high concentration: form maturation promoting factor (MPF)

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