問題詳情
19. If deer is crossed with sheep, the embryos will form but cease development and spontaneously abort. This is an example of
(A) a prezygotic mechanism.
(B)hybrid inviability.
(C)hybrid sterility.
(D)hybrid breakdown.
(E) spermatic behavior.
(A) a prezygotic mechanism.
(B)hybrid inviability.
(C)hybrid sterility.
(D)hybrid breakdown.
(E) spermatic behavior.
參考答案
無參考答案
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