Answers

2016-02-10T21:13:41+05:30
A male has XY gametes while the female has XX gametes. No matter what is the gender of the baby the mother contributes only the X gamete. If the X gamete of the male fusses, then the baby born is a girl. If the Y gamete fusses then the baby born is a boy. 
Hence there are 50 % chances to either have a boy or a girl.

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Yours, Jahnavi.
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