There is a sub-population A and another sub-p | vedclass

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(C) When two sub-populations are separated by a natural barrier,genetic drift and natural selection accumulate different variations in each of the two

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They will undergo speciation over time.

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(C) When two sub-populations are separated by a natural barrier,genetic drift and natural selection accumulate different variations in each of the two geographically isolated sub-populations over several generations.In due course of time,these two sub-populations become significantly different from each other.Due to reproductive isolation,they eventually become unable to interbreed even if they are brought together.Consequently,these two groups transform into two distinct new species.

There is a sub-population $A$ and another sub-population $B$. Both are separated by a natural barrier. What will happen in such a case?

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