Chapter 13: Meiosis Flashcards

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1
Q

Prophase I

A

Homologous chromosomes pair up and form tetrad, crossing over occurs

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2
Q

Metaphase I

A

Homologs line up along the equator

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3
Q

Anaphase I

A

Spindle fibers move homologous chromosomes to opposite sides

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4
Q

Telophase I

A

Cytoplasm divides, 2 daughter cells are formed

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5
Q

Prophase II

A

Follows meiosis I

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6
Q

Metaphase II

A

Chromosomes line up along the equator, not in homologous pairs

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7
Q

Anaphase II

A

Chromatids separate

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8
Q

Telophase II

A

Nuclear membrane forms, cytoplasm divides, 4 daughter cells

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9
Q

Gamete

A

sperm, egg cells

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10
Q

Chromatid

A

one half of a chromosome

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11
Q

Homologous chromosomes (homolog)

A

A pair of matching chromosomes in an organism, with one being inherited from each parent

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12
Q

Independent assortment

A

different genes independently separate from one another when reproductive cells develop

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13
Q

Chaismata

A

point where chromosome touch and crossing over occurs

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14
Q

Spindle fibers

A

attach to the chromosomes in metaphase, work to split apart chromosomes

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15
Q

Cytokinesis

A

the cytoplasmic division of a cell at the end of mitosis or meiosis

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16
Q

Daughter cells

A

product of meiosis or mitosis

17
Q

Haploid

A

sex cells have half a set

18
Q

Diploid

A

body cells have the full set of chromosomes

19
Q

Meiosis

A

consists of 2 divisions resulting in 4 daughter cells, each with half the number of chromosomes

20
Q

Zygote

A

a diploid cell resulting from the fusion of two haploid gametes

21
Q

Crossing over

A

the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring

22
Q

Gametogenesis

A

the process in which cells undergo meiosis to form gametes