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Home Q & A Board Biology-Related Homework Help General Biology
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rutu0309 rutu0309
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6 years ago
Consider two species, one of which has an effective population size that is five orders of magnitude greater than the other. In which species would you expect to see a smaller genome size? Explain your reasoning.
 
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#1
6 years ago
ANS:
The species with the larger effective population size is expected to have the smaller genome. In larger popula-tions, selection is expected to be able to remove deleterious mutations with even a small effect on fitness. Thus, a slightly deleterious noncoding region of the genome can be more quickly removed from a genome, thereby resulting in a genome of smaller size.
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