When a woman is pregnant, is the chance of having a girl or boy equal 50/50? Or are there like some biology stuff determining the odds?
In: Biology
So we all have two things inside us that determine if we are either boys or girls. Girls have XX and boys have XY.
When humans reproduce the baby gets one from each parent. Girls can only give an X, since that’s all that they have. Boys can give an X or a Y. Since all boys have one X and one Y that means they have a 50/50 chance of giving either.
If the boy gives an X the child will be a girl, if the boy gives a Y the child will be a boy.
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