An example of postzygotic hybrid sterility is : A. the birth of a sterile mule for the mating of a horse and a donkey. B. the elaborate mating ritual of many bird species that help them pick a fertile mate.
Biology · High School · Wed Jan 13 2021
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The example of postzygotic hybrid sterility is: A. the birth of a sterile mule from the mating of a horse and a donkey.
Postzygotic barriers are reproductive barriers that occur after the formation of a hybrid zygote. In the case of a horse and a donkey mating to produce a mule, the mule is often sterile due to the mismatch in the number of chromosomes inherited from each parent species. This mismatch in chromosome numbers causes reproductive isolation, leading to the sterility of the hybrid offspring, such as the sterile mule.