The inability of fertilized eggs to develop following matings between different species of leopard frogs is an example of which of the following?Multiple choice question.Mechanical isolation.Postzygotic isolation.Prevention of gamete fusion.Behavioral isolation.
Question
The inability of fertilized eggs to develop following matings between different species of leopard frogs is an example of which of the following?Multiple choice question.Mechanical isolation.Postzygotic isolation.Prevention of gamete fusion.Behavioral isolation.
Solution
The inability of fertilized eggs to develop following matings between different species of leopard frogs is an example of Postzygotic isolation.
Here's why:
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Mechanical isolation refers to when different species are isolated by mechanical barriers, like differences in size and shape of reproductive organs. This is not the case here as the eggs are being fertilized.
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Postzygotic isolation occurs when two members of different species mate and produce a zygote, but the zygote fails to develop into a fertile adult. This is what's happening in the case of the leopard frogs.
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Prevention of gamete fusion would mean that the sperm and egg are not able to unite and form a zygote. This is not the case here as the eggs are being fertilized.
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Behavioral isolation occurs when there are differences in mating behavior between two species that prevent them from interbreeding. This is not the case here as the frogs are mating.
So, the correct answer is Postzygotic isolation.
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