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[A]: The process of speciation occurs on...

[A]: The process of speciation occurs only in allopatric populations.
[R]: The sympatric species can arise either due to changes in the chromosome number or due to introgressive hybridization and poly- ploidy.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
B
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  11. [A]: The establishment of reproductive isolation is an event of biolog...

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  12. [A]: Varied groups of plants and animals ei- ther related or unrelated...

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  13. [A]: The natural hybrids of the species are either totally absent or a...

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  14. [A]: The earliest living organisms were truc-turally simple. [R]:...

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  15. [A]: There is no phenomenon like organic evolution. [R]: Evolutio...

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