1.

Mature mammalian RBC’s are generally devoid of nucleus. What could be the possiblereason for this?

Answer»

EXPLANATION:

RBCs are devoid of a nucleus in most of the mammals. This adaptation the RBCs to CARRY the maximum AMOUNT of Hb and hence the maximum amount of oxygen. The LACK of a nucleus also gives the RBCs their characteristic biconcave shape and allows them to have a higher surface area for diffusion.

Thus, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.'

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