AGB-0013
QUESTION
Cross-breeding increases?
OPTIONS
(A) Vigour
(B) Breeding merit
(C) Both (a) and (b)
(D) None
ANSWER
(A) Vigour
EXPLANATION
Crossbreeding commonly produces heterosis, resulting in increased hybrid vigour, especially for traits such as survival, fertility and growth. Breeding merit is not automatically increased in every cross, because it depends on the breeds, traits and breeding objectives, so it is not the defining general effect represented by the question.
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