問題詳情
60. The recessive allele that causes phenylketonuria (PKU) is harmful, except when an infant's diet lacks the amino acid,phenylalanine. What maintains the presence of this harmful allele in a population's gene pool?
(A) heterozygote advantage
(B) stabilizing selection
(C) diploidy
(D) balancing selection
(E) kin selection
(A) heterozygote advantage
(B) stabilizing selection
(C) diploidy
(D) balancing selection
(E) kin selection
參考答案
答案：C
難度：適中0.444444
統計：A(4),B(3),C(8),D(1),E(0)
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