The Solution to the Puzzle of Why the Rate of Substitution

question 26

Multiple Choice

The solution to the puzzle of why the rate of substitution is approximately constant per year, despite drastic differences in generation time among species, relies on the

• A) relationship between the strength of selection and the number of new mutations.
• B) inverse relationship between generation time and population size.
• C) effect of neutral mutations on generation time.
• D) number of new mutations that experience heterozygote advantage.

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