Figure 27.8 
-The graphs above show percentage of change in three different molecular sequences plotted against time.Which of these molecular sequences would make a good candidate for a molecular clock?
A) Graph A,because the curve levels off over time
B) Graph B,because DNA is more important to organisms and,therefore,will give a more accurate picture of divergence
C) Graph C,because the change in sequence is the most rapid
D) Graph A or C,because changes in amino acid sequence are more likely to be neutral than changes in DNA
E) Graph B or C,because they are straight lines
Correct Answer:
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