A member asked:

Can you tell me exactly when is the sex of the fetus decided?

A doctor has provided 1 answer

At conception: The sperm that fertilizes the egg brings the sex chromosome that establishes the genetic code for the sex of the fetus.The sperms donation of either an x or a y joins with the x in the egg to create the xx or xy pair that will later direct the creation of gender specific organs.

Answered 7/19/2013

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