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Biology 100 Cawley #3 > Powerpoint chapter 7 > Flashcards

Powerpoint chapter 7 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Specialized form of cell division in gonads to produce gametes

A

Meiosis

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2
Q

Reduces number of chromosomes in each cell by one half

A

Meiosis

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3
Q

Chromosomes come in ________ pairs.

A

Homologous

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4
Q

_______ gets one of each pair.

A

Gamete

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5
Q

a photograph of chromosomes arranged in pairs

A

Karyotype

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6
Q

Human somatic cells have ____ pairs of ______.

A

22

autosomes

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7
Q

Human somatic cells have ___ pair of ___ _________.

A

1

Sex chromosomes

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8
Q

Specialized sex cells (egg, sperm)

A

Gametes

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9
Q

Produced by meiosis in the gonads (sex organs)

A

Gametes

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10
Q

_______ _____, with one set of 23 chromosomes in humans

A

Haploid cells

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11
Q

Fused gametes (during fertilization) form a ____ _____.

A

diploid zygote

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12
Q

Egg cell has 23 chromosomes (_________)

A

Unpaired

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13
Q

Sperm cell has 23 chromosomes (_______)

A

Unpaired

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14
Q

DNA is duplicated during interphase.

A

Meiosis

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15
Q

Meiosis takes place in how many stages?

A

2

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16
Q

Separating out the homologous Paris into two separate cells.

A

Meiosis 1

17
Q

Separating out the sister chromatids in each cell to produce four haploid cells.

A

Meiosis 2

18
Q

Exchange of genetic information between homologous chromosomes

A

Crossing over

19
Q

Occurs during prophase 1 of meiosis 1

A

Crossing over

20
Q

Results in new types of gametes

A

Crossing over

21
Q

Typically cross over together

A

Linked genes

22
Q

The random arrangement and separation of different pairs of chromosomes during meiosis 1

A

Random alignment

23
Q

Results in genetically distinct gametes

A

Random Alignment

24
Q

Segments of DNA that code for proteins

A

Genes

25
Q

Single, circular chromosomes

A

Prokaryotes

26
Q

Linear chromosomes

A

Eukaryotes

27
Q

Human cells have ___ chromosomes

A

46

28
Q

About ________ different combinations of chromosomes are possible.

A

8 million

29
Q

produces more diversity

A

Random fertilization

30
Q

8 million x 8 million =

A

64 trillion possibilities

Biology 100 Cawley #3 (17 decks)

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