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Biology 1201 > Exam 4 > Flashcards

Exam 4 Flashcards

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1
Q

A cell in G2 of interphase will have how much DNA compared to the same cell when it was in G1 of interphase?

A

Twice as many

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2
Q

A cell in G2 of interphase will have how many chromosomes compared to that same cell when it was in G1 of interphase?

A

Equal

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3
Q

Cell Reproduction

A

1) Division of the nucleus
- Karyokinesis (mitosis, meiosis)
2) Division of the cytoplasm
- Cytokinesis

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4
Q

Mitosis

A

Produces identical daughter cells

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5
Q

A cell in Anaphase of mitosis will have how many chromosomes compared to that same cell when it was in G1 of interphase?

A

Twice as many

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6
Q

A cell in metaphase of mitosis will have how many chromosomes compared to that same cell when it was in G2 of interphase?

A

Same number

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7
Q

What stages is CDK present?

A

G1, S, G2

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8
Q

The diploid number of chromosomes for a horse is 64. What is the haploid number?

A

32

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9
Q

The haploid number of chromosomes for a hedgehog is 44. What is the diploid number?

A

88

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10
Q

A human with 47 chromosome would be considered

A

Polypoid

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11
Q

Prophase

A

Nuclear envelope breaks down, chromosomes attach to the spindle

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12
Q

Metaphase

A

Pairs line up in the center

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13
Q

Ananphase

A

Replicated chromosomes separate and begin to fall apart

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14
Q

Telophase

A

Chromosome moves to spindle poles, bunches into two groups

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15
Q

Cytokinesis

A

cells separate

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16
Q

How do chromosomes move on the spindle?

A

Kinetochore destroys the spindle, making it shorter

17
Q

What determines if a cell divides?

A

G1 and G2 checkpoints

18
Q

Why does the second division of meiosis occur

A

Crossing over

19
Q

Genotype Aa can only produce what alleles

A

A and a

20
Q

Homozygous dominant

A

AA

21
Q

Homozygous recessive

A

aa

22
Q

Heterozygous

A

Aa

23
Q

A dihybrid cross does what?

A

Cross between F1

24
Q

Example of co-dominance

A

Blood type AB

25
Q

What genes are located on the X chromosome

A

Hemophilia, red-green color blindness, muscular dystrophy

26
Q

What genes are located on the Y(male) chromosome

A

Hairy ears

27
Q

What is pleiotrophy

A

one gene has multiple phenotypes

28
Q

Example of pleiotrophy

A

Sickle-cell disease

Biology 1201 (1 decks)

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