A : Sometimes, some babies have a small tail. R : This is just a type of mutant variety

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6.Evolution

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$A$ : Sometimes, some babies have a small tail.
$R$ : This is just a type of mutant variety

A

Assertion and Reason both are correct and also correct explanation.

B

Assertion and Reason both are correct but not explanation of assertion.

C

Assertion is correct, but Reason is incorrect.

D

Both Assertion and Reason are incorrect.

Solution

This is atavism $\rightarrow$ unusual occurrence of ancestral trait.

Standard 12

Biology

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