a woman having hemophilia with a normal husband gave birth to a son and a daughter. say how much the siblings has the chance to be affected by hemophilia.
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firstly the chances of a female being haemophilic is thin because for girl to be born haemophilic her mom has to be a carrier and her dad should be haemophilic ( generally unavailable after puberty) , despite such low chances if a female haemophilic is seen , then her childern with a normal husband will show 2 possibilities:
● her daughters will be 100% carriers
●her sons have 100% chances of being haemophilic
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in 70% of the cases of hemophilia, there is a known family history. The gene that causes hemophilia is passed from parent to child. A mother that carries the gene is called a carrier, and she has a 50% chance of having a son with hemophilia and a 50% chance of having a daughter who is also a carrier.
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