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Question

Biospecies is based on 

A

Cytological traits

B

Reproductive isolation

C

Genetic isolation

D

Both B and C

Medium

Solution

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Correct option is
D

Both B and C

The most accepted definition of biological species (Biospecies) was given by Ernst Mayr. He defined the species in terms of interbreeding. According to him, the species includes various groups of freely interbreeding natural populations isolated reproductively from such other groups. This leads to genetic isolation and thus speciation.
So, the correct option is 'Both B and C'.

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