Question

The sperms bearing X chromosome move faster than the sperms bearing Y chromosome.

• A. True
• B. False

Answer 1

The correct option is B

False

The X chromosome does 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.