What is the role of reproductive isolation in the formation of a new species?
Answer and explanation
Correct answer: It stops gene flow between groups
The governing concept is speciation through reproductive isolation. If separated groups no longer interbreed successfully, gene flow between them is reduced or stopped. Mutations, natural selection, and genetic drift can then cause the groups to accumulate different inherited characteristics. Over many generations, the divergence may become large enough for them to function as separate species. Thus, option A is correct; isolation does not instantly remove variation or end sex determination.
Frequently asked questions
What is the correct answer to this question?
It stops gene flow between groups
Why is this the correct answer?
The governing concept is speciation through reproductive isolation. If separated groups no longer interbreed successfully, gene flow between them is reduced or stopped. Mutations, natural selection, and genetic drift can then cause the groups to accumulate different inherited characteristics. Over many generations, the divergence may become large enough for them to function as separate species. Thus, option A is correct; isolation does not instantly remove variation or end sex determination.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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