問題詳情
15. Black fur in mice
(B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t). What fraction of theprogeny of the cross BbTt × BBtt will have black fur and long tails?
(A) 1/16
(B) 1/4
(C) 3/8
(D) 1/3
(E)1/2
參考答案
答案：E
難度：適中0.684211
統計：A(1),B(5),C(0),D(0),E(13)