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Biology 10 > Meiosis > Flashcards

Meiosis Flashcards

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1
Q

What is meiosis used for?

A

makes gametes (sperm and egg cells)

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2
Q

What are the stages of meiosis?

A

P1, M1, A1, T1, Cytokinesis 1, P2, M2, A2, T2, Cytokinesis 2

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3
Q

What happens in Prophase 1?

A

Chromosomes condense, find homologous pairs, crossing over occurs

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4
Q

What happens in Metaphase 1?

A

Chromosomes move to the middle of the cell in pairs

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5
Q

What happens in Anaphase 1?

A

Spindle fibers pull chromosomes away from each other to opposite sides

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6
Q

What happens in Telophase 1?

A

2 new nuclei are formed

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7
Q

What happens in Cytokinesis 1?

A

the cytoplasm is split, 2 cells are formed

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8
Q

What happens in Prophase 2?

A

Spindles start to form

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9
Q

What happens in Metaphase 2?

A

Chromosomes line up in single file, not pairs

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10
Q

What happens in Anaphase 2?

A

Chromatids are pulled apart by spindle fibers

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11
Q

What happens in Telophase 2?

A

Nuclei are reforming, the 2 cells divide and 4 cells are formed

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12
Q

What happens in Cytokinesis 2?

A

the cytoplasm is completely split

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13
Q

How many chromosomes and chromatin are there before interphase?

A

46 chromosomes, 46 chromatin

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14
Q

How many chromosomes and chromatin are there after interphase?

A

46 chromosomes, 92 chromatin

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15
Q

How many chromosomes and chromatin are there after meiosis 1?

A

23 chromosomes, 46 chromatin

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16
Q

How many chromosomes and chromatin are there after meiosis 2?

A

23 chromosomes, 23 chromatin

Biology 10 (7 decks)

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