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BIOLOGY SEMESTER ONE > Meiosis > Flashcards

Meiosis Flashcards

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1
Q

What is the purpose of meiosis?

A

Producing sex cells

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2
Q

Interphase 1?

A

46 chromosomes are replicated

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3
Q

Prophase 1?

A

chromosomes line up with their homologous pairs. Then crossing over occurs, where genetic info is exchanged.

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4
Q

Metaphase 1?

A

pairs line up across the center of the cell

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5
Q

Anaphase 1?

A

paired homologous chromosomes separate from spindle fibers pulling them apart

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6
Q

Telophase 1?

A

nuclear membrane forms around cluster of chromosomes

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7
Q

Cytokinesis?

A

2 daughter cells

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8
Q

Prophase 2?

A

cell’s chromosomes become visible

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9
Q

Metaphase 2?

A

chromosomes line up in the center of each cell

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10
Q

Anaphase 2?

A

paired chromatids separate

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11
Q

Telophase 2?

A

Nuclear membrane forms

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12
Q

Cytokinesis 2?

A

4 haploid daughter cells?

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13
Q

Haploid?

A

Containing ONE set of chromosomes (n). Sex cells are haploid

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14
Q

Diploid?

A

Containing TWO sets of chromosomes (2n). Body cells are diploid.

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15
Q

At what stage in meiosis do cells become haploid?

A

Telophase 1

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16
Q

How many and what type of daughter cells does meiosis produce?

A

4 haploid

17
Q

At which stage of meiosis are sister chromatids separated from each other?

A

Anaphase 2

18
Q

What stage of meiosis is most similar to mitosis?

A

Meiosis 2

19
Q

When the sperm fertilizes the egg, what is the name of that new cell formed from fertilization?

A

zygote

20
Q

What happens in prophase 1 that increases genetic variation?

A

Crossing over.

21
Q

A diploid cell has how many replicated chromosomes?

A

46

22
Q

karyotype?

A

an individual’s complete set of chromosomes

23
Q

gamete?

A

a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually
(sperm or egg cell)

24
Q

At what stage in the cell cycle is DNA replicated?

A

S phase

BIOLOGY SEMESTER ONE (6 decks)

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