Consider a hypothetical enzyme-coding gene and sequences of the gene from several species of rodents.The figure shows the rates of nonsynonymous and synonymous substitutions for each of four regions of the gene. 
Which region is under the strongest purifying selection?
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Q122: Refer to the figure showing the hypothetical
Q123: After obtaining DNA sequences from a variety
Q124: Why can lateral gene transfer be advantageous
Q125: Refer to the figure showing the hypothetical
Q126: Genome sizes vary tremendously among organisms.Size does
Q128: Which is the best representation of a
Q129: Changes to _ will not affect the
Q130: Within a genome, some genes are found
Q131: Why is much of the genetic variation
Q132: Based on what you have learned about
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