asmi
Forum Hero
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1/4 ?
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| anne
Forum Elite
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u r right asmi,this is the answer.but i couldnt figure it out,bec a/c to my calculations,it should be 1/8th bec the couple share 1/4th of their genetic material by virtue of being related.and as the man is homozygous recessive,and woman probably heterozygous,there's a 50%probability of their kid being albino.so i had calculated it to be 1/8.
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| asmi
Forum Hero
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anne,
Since it is AR disease , there will be 25 % probablity that the child will be affected .
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| peekay
Forum Guru
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is it important to consider that they are uncle and niece.
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| anne
Forum Elite
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asma,how did u calculate 25%probability considering that the man is affected and so is homozygous recessive,and the woman is probably a heterozygous carrier.isnt it supposed to be 50% :?: :?
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| asmi
Forum Hero
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to be frank anne...i just thought it would be 25% since it is AR disease .I didn't looked about their relation ( neice)...i think they should have mentioned her as heterozygous,if not then consider it as homo....
May be iam wrong in here .... :roll:
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| Malaysian
Forum Guru
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The niece is likely to share 1/4 of her genes with her uncle and so 1/4 chances of being albino.If she is albino then 100% of the kids will be too and so the chances of children being albino is 1/4.However I'm not sure if this calculation incorporates the fact the girl is heterozygous???
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| Malaysian
Forum Guru
Topics: 28
Posts: 778
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The niece is likely to share 1/4 of her genes with her uncle and so 1/4 chances of being albino.If she is albino then 100% of the kids will be too and so the chances of children being albino is 1/4.However I'm not sure if this calculation incorporates the fact the girl is heterozygous???
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| alex-)
Forum Newbie
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Hello
consider it 2 situations case niece is AA or Aa since no word she has albin.
case XY aa plus XX AA 0/4 albino kids
case XY aa plus XX Aa 2/4 albinos.
Total 2/8 or 1/4.
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