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Question

Assertion: Species are groups of potentially interbreeding natural populations which are isolated from other such groups.

Reason: Distinctive morphological characters are displayed due to reproductive isolation.


A
If both assertion and reason are true and reason is the correct explanation of assertion  
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B
If both assertion and reason are true but reason is not the correct explanation of assertion 
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C
If assertion is true but reason is false 
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D
If both assertion and reason are false 
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Solution

The correct option is B If both assertion and reason are true but reason is not the correct explanation of assertion 
A group of individuals resembling each other in morphological, physiological, biochemical and behavioural characters constitute a species. Such individuals can breed among themselves but cannot breed with members other than their own to produce fertile offsprings. New species are formed mainly due to reproductive isolation. Reproductive isolation leads to distinctive morphological characters. 

Biology

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