Unit 7 Flashcards

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1
Q

Causes of nucleotide mismatch

A

replication error, damage to DNA, mismatch repair(MMR)

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2
Q

Change in DNA nucleotide sequence.

A

Mutation

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3
Q

Mutations accumulate faster in organisms with ______ generation times.

A

shorter

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4
Q

cells that do not pass on to offspring

A

Somatic cells

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5
Q

cells that will pass on to offspring

A

Germline cells

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6
Q

____ mutation happens in coding region, alters polypeptides.

A

Harmful

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7
Q

________ mutation causes changes to structure of a chromosome

A

large-scale

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8
Q

number of copies of a gene that you have.

A

gene dosage

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9
Q

In large-scale mutation, _______ is when a section of a chromosome gets removed.

A

deletion

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10
Q

In large-scale mutation, _______ repeats a segment of a chromosome.

A

duplication

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11
Q

In large-scale mutation, _______ reverses a segment within a chromosome

A

inversion

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12
Q

In large-scale mutation, _______ moves a segment from one chromosome to a nonhomologous chromosome.

A

translocation

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13
Q

________ mutations are changes to a small number of nucleotides.

A

small-scale

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14
Q

small-scale mutation type that adds nucleotide

A

insertion

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15
Q

small-scale mutation type that removes nucleotide.

A

deletion

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16
Q

small-scale mutation type that changes one amino acid for another

A

substitution.

17
Q

small-scale mutation result that does not affect polypeptide result.

A

silent

18
Q

small-scale mutation result where one or more amino acids have been changed.

A

missense

19
Q

small-scale mutation result where you get to a stop code early, so you’re missing amino acids.

A

nonsense

20
Q

after a nucleotide is added the codon shifts down. this is called _____.

A

frameshift

20
Q

after a nucleotide is added the codon shifts down. this is called _____.

A

frameshift

21
Q

mutations are the main source of ________

A

genetic variation