The sperms bearing X chromosome reach the egg faster than the sperms bearing Y chromosome.

True

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False

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Solution

The correct option is B
False

The X chromosomes give more weight to the sperm and hence swims slower compared to the sperm containing Y chromosome. But since faster swimming means faster burnout for the sperm, this advantage of the Y chromosome bearing sperm is negated. Eventually, it ensures that both type of sperms have equal chances to reach the egg.

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Similar questions

An egg contains either X or Y chromosome and a sperm contains X chromosome.

What will be the sex of the child born :

(a) if X chromosome carrying sperm fertilizes an ovum containing X chromosome?

(b) if Y chromosome carrying sperm fertilizes an ovum containing X chromosome?

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