Genetics and Evolution-Neutral Mutations and molecular evolution

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  • Created by: jessica
  • Created on: 03-03-13 13:59
What are the three effects on fitness that mutations have?
deleterious, increase, neutral.
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What is a neutral mutation?
mutation that has no effect on fitness. it is neutral with respect to natural selection.
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What is the equation to calculate the rate of neutral replacement?
2Nµ x 1/(2N) = µ
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What are Synonymous substitutions?
are from one alternative codon to another, making no change in the amino acid
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What are Nonsynonymous substitutions?
result in an amino acid change.
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What is purifying selection?
pervasive aspect of natural selection that reduces genetic variation and preserves DNA and protein sequences over time.
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Card 2

Front

What is a neutral mutation?

Back

mutation that has no effect on fitness. it is neutral with respect to natural selection.

Card 3

Front

What is the equation to calculate the rate of neutral replacement?

Back

Preview of the front of card 3

Card 4

Front

What are Synonymous substitutions?

Back

Preview of the front of card 4

Card 5

Front

What are Nonsynonymous substitutions?

Back

Preview of the front of card 5
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