Why do pseudogenes evolve so much more quickly than other genes?
A. High rates of recombination in pseudogenes are often subject to unequal crossing over.
B. Pseudogenes are processed more quickly because there are no enzymes present to check for replication errors.
C. Transposable elements target pseudogenes as a site of insertion.
D. They are not subject to purifying selection because mutations have no functional consequence.
E. Directional selection causes rapid change in their sequence.
Ans: D. They are not subject to purifying selection because mutations have no functional consequence.
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