A member asked:

Could you please describe the difference between an egg cell and a sperm cell in terms of the sex chromosomes that may be present ?

A doctor has provided 1 answer
Dr. James Lin answered

Here are ...: Normally, all eggs carry an X-chromosome; half sperms carry X-chromosome and another half, Y-chromosome. A Y-chromosome sperm fertilizes an egg to make a male, and a X-chromosome sperm fertilizes an egg to make a female.

Answered 6/14/2017

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What does it feel like when sperm reaches the egg cell?

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