1.

Assertion (A) : In human being the female play a major role in determining the sex of the offspring.
Reason (R) : Women have two X - chromosomes.
Codes

A. Both A and Rare true and R is the correct explanation of A.
B. Both A and R are true but R is not a correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer» E.


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