問題詳情
44. The emigration or immigration of fertile individuals from or to a small population may alter the gene pool of thepopulation. This example of a change in allele frequency is best characterized as _____.
(A) natural selection
(B) population bottleneck
(C) founder effect
(D) gene flow
(E) convergent evolution
參考答案
答案：D
難度：適中0.444444
統計：A(1),B(1),C(2),D(4),E(0)