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Postzygotic isolating mechanism


1) A mechanism that prevents interbreeding by blocking the development of a viable and fertile individual after fertilization has taken place.

2) A type of reproductive isolating mechanism which comes into play after the gametes of two different species have fused to create a hybrid zygote. These mechanisms may prevent the proper development of the hybrid and/or make it infertile, thus the hybrid is unable to successfully reproduce.

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  • This page was last modified on 12 February 2014, at 02:21.
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