Given below are assertion and reason. Point out if both re true with reason being correct explanation (A). Both are true but reason is not correct explanation (B), assertion is true but reason is wrong (C ) and bothare wrong (D). Assertion . In humans the gamete contributed by the male determines whether the child produced will be male or female.
Reason. Sex in humans is polygenic trait dependent upon the com ulative effect of some genes on X-chromosome and some on Y-chromosome.
A. A
B. B
C. C
D. D
