Differenece between women sperm men

Sperm is a motile reproductive cell, not visible with the naked eyes, which is transferred to the female reproductive system during sexual intercourse. It allows our most engaged readers to debate the big issues, share their own experiences, discuss real-world solutions, and more. Want to discuss real-world problems, be involved in the most engaging discussions and hear from the journalists? Keep me logged in. Since the late s, scientists have explored how to produce sperm where all of the chromosomes come from a female donor. In fact, a man's Y chromosome looks just like his father's and his father's father's, and so on, back through the generations.