roopashri
Forum Elite
Topics: 16
Posts: 190
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A woman has an autosomal dominant form of postaxial polydactyly. Assuming that you have not examined any other family members to determine whether they have postaxial polydactyly, what is the probability that her second cousin is also affected with this fully penetrant disorder?
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| mjl1717
Forum Hero
Topics: 957
Posts: 5,461
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With these last 2 genetics or probability qs that you gave many or most will skip the question or randomly guess under exam circumsances. I think it has to do with an extrapolation of the Hardy Weinberg Law. [And the probability equation] Ill try to get back with you with more info.
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| sturge_weber
Forum Guru
Topics: 77
Posts: 1,042
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i think mjl1717, is just asking that how much percent of genes re common b/w two cousins, and if she si asking that i wouls go for 1/16, as its second cousins
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| roopashri
Forum Elite
Topics: 16
Posts: 190
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i think its 1/32, sturge_weber can u tell how u calculate so i can correct myself
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| sturge_weber
Forum Guru
Topics: 77
Posts: 1,042
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well i just took the assumption, that real brothers have half genes common, first cousins have one eighth genes common, so second cousins would have 1/16 genes common
well i am not sure
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| aim
Forum Junior
Topics: 4
Posts: 47
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can anybody explail this in detail,
please tell the source , we should refer for these ques
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| hatiifa
Forum Newbie
Topics: 1
Posts: 13
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it's 1/32, but dont know how its calculated
http://www.tbdhu.com/NR/rdonlyres/9DC92C93-4564-4...
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| aim
Forum Junior
Topics: 4
Posts: 47
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thx a lot
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