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A member asked:
If there any reason i have to understand why we have only daughters and no son? less male (y) sperm maybe or is it inherited in the genes?
A doctor has provided 1 answer
Daughters : Each time the sperm fertilizes the egg there's an equal chance of a y chromosome (which would create a male fetus) and x-chromosome ( which would create a female fetus) fertilizing the egg. Statistically there is some variation between 0.85 and 1.15 of male to female birth rates. Basically it's like flipping a quarter 10 times the first four times you might get heads but over all you end up with a 50-50 ratio.
Answered 3/17/2014
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