Postzygotic isolating mechanisms prevent successful interbreeding among members of different species. Hybrid results when a zygote cannot successfully develop past the early stages of embryonic development. Hybrid results when an interspecies hybrid zygote reaches maturity but cannot produce viable gametes. Hybrid results when a hybrid is able to produce offspring with other hybrids, but subsequent generations harbor deleterious genetic abnormalities.未知题型

A

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B

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C

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