18.3- Mutations and genetic recombination Flashcards

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1
Q

mutation=

A

permanent change to DNA sequence

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2
Q

somatic cell mutations occur in ___

A

Body cells (2n)

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3
Q

Germ line mutations occur in ___

A

Gametes (n)

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4
Q

point mutations involve only 1 ___ and may be ___,____ or _____

A

nucleotide
substitution, insertion or deletion

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5
Q

Mutations can be ___,____ or ____

A

silent, mis-sense or non-sense

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6
Q

what are silent mutations

A

mutations that have no effect on cell processes

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7
Q

what are mis-sense mutations

A

mutation sthat result in an altered protein- can be helpful or unhelpful

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8
Q

what are non-sense mutations

A
  • mutations resulting in a cell that cant make a functional protein
    -stop or start sequence altered
    -regular sequence altered
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