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Home Q & A Board Biology-Related Homework Help General Biology
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eriklam eriklam
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6 years ago
The substitution rate is expressed in terms of substitutions per generation; however, molecular clock estimates show that substitutions accumulate annually regardless of the generation time.
 
  What explanation for this discrepancy is illustrated in the figure below?
 
  What will be an ideal response?
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#1
6 years ago
ANS:
That long generation time animals tend to smaller population sizes and that organisms with a shorter generation time tend to have larger population sizes. These factors can-cel each other out to produce a nearly constant annual rate of substitution regardless of generation time.
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