38. Which of the following features permits a gene to act as a molecular clock?
(A) a reliable average rate of mutation
(B) a large number of base pairs
(C) a recent origin by a gene-duplication event
(D) being acted upon by natural selection
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統計: A(2), B(0), C(2), D(1), E(0) #3411522
統計: A(2), B(0), C(2), D(1), E(0) #3411522