Expert: Walter Hintz - 4/5/2006

Question
Males have XY chromosomes while the females have XX chromosomes.In science male is responsible for the male(son) or female(daughter) child.
But it's a common observation that if a man has no son from a woman and he gets married with another woman then that man gets the son.So plz make me clear it.
My other question is that a man has no children from his first wife and if he gets married with another woman then that man gets the children.So also make it clear to me which is also a common observation.  

Answer
It is all a matter of chance Muhammad.  When sperms develop they contain either the x or y chromosome.  If the x fertilizes the egg a girl is conceived and if the y fertilizes the egg it will be a male.  The eggs contain only x chromosomes.  What are the odds of a male or female: 50/50.  The odds are the same no matter how many females the male impregnates.