Question

How does reproductive isolation cause speciation?

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A. It reduces gene flow.
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B. It prevents divergence.
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C. It allows interbreeding.
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D. It stops adaptive radiation.

Answer 1

The correct answer is A. It reduces gene flow

Answer 2

Reproductive isolation causes speciation by reducing the gene flow

Step-by-step explanation:

T Dobzhansky introduced the isolating mechanisms. It plays vital role in biological species concept. The problem with isolation is that it combines traits that reduce flow of genes whose example is choice for mating or fertilizer barrier.

Reproductive isolation is known as lack of mixture in their genes. Isolating mechanism can be broadly divided into Pre-isolating mechanism and Post-isolating mechanism. It doesn’t only affect the flow of gene and it also affects the natural selection