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Question

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


  1. False

  2. True


Solution

The correct option is A

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.

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