Does a sperm cell carry either a "Y" or "X" chromosome to make a "XY" or "XX" chromosome pair in the egg?

That's what everyone says. I know that the "Y" chromosome makes a male. I heard that if a sperm with a "Y" chromosome reaches the egg, then the baby will be male and if a sperm with a "X" chromosome reaches the egg then the baby will be female.


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Most Helpful Girl

  • A kind of like that because men have both x and y and women are xx
    So the child's sex depends only on the man :)

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Most Helpful Guy

  • This is correct.
    if a sperm with a"Y" chromosome reaches the egg, then the baby will be male and if a sperm with a "X" chromosome reaches the egg then the baby will be female.

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What Girls Said 0

The only opinion from girls was selected the Most Helpful Opinion!

What Guys Said 2

  • Yes, in a normal fertilization, it's as you described

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  • yes, so if you want it to be a particular sex you'll have to make sure it's either an X or Y that reaches it (ie test tube baby). Dunno why this isn't common in China, since practically no one wants female children there (during one-child-rule days they were actually tossed down wells or otherwise disposed of so they can try again without paying the heavy tax for a second).

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