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Biology > Meiosis quiz > Flashcards

Meiosis quiz Flashcards

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1
Q

gamete

A

sex cell (sperm or egg)

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2
Q

meiosis

A

cell division that makes gametes and reduces the number of chromosomes in a cell by half

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3
Q

haploid

A

cell that has only one copy of each chromosome (n) gametes (sperm and egg)

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4
Q

diploid

A

cell that has two copies of each chromosome (2n)
body cells

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5
Q

homologous chromosomes

A

cell that has two copies of each chromosome (2n)
body cells

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6
Q

homologous chromosomes

A

Pair of chromosomes that are the same size and carry the same genes on them (one chromosome comes from mom and the other from dad)

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7
Q

gene

A

A segment of DNA on a chromosome that codes for a specific trait (ex. eye color, height)

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8
Q

chromosome

A

structure made of DNA that carries the genetic material

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9
Q

crossing over

A

exchange of genetic material between homologous chromosomes during prophase I of meiosis
-increases genetic variation

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10
Q

tetrad

A

structure containing (two homologous chromosomes) four chromatids that forms during prophase I

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11
Q

Interphase I

A

Chromosomes are replicated (copied)

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12
Q

Prophase I

A

Homologous chromosomes pair up and Crossing over occurs
(nuclear membrane disappears, spindle forms, centrioles move to the poles, chromatin condenses into chromosomes)

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13
Q

Metaphase I

A

Homologous chromosome pairs line up in the middle of the cell

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14
Q

Anaphase I

A

Homologous chromosomes are pulled apart

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15
Q

Telophase I

A

Two new nuclei form

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16
Q

Cytokinesis I

A

-Cytoplasm divides
-two different, haploid daughter cells are formed

17
Q

Metaphase II

A

Chromosomes/sister chromatids line up in the middle (X’s in single file)

18
Q

Anaphase II

A

Sister chromatids are pulled apart

19
Q

Cytokinesis II

A

-cytoplasm divides
-4 new different, haploid daughter cells are formed

20
Q
A

Biology (5 decks)

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