m_l_e
Forum Newbie
Topics: 3
Posts: 14
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NBME 1
44. a 50 year old man who has had MI was subsequently diagnosed with familial hypercholestrolemia, an AD disorder. His son has not been tested for hypercholestrolemia. what is the probability tht the patients granddaughter , through his son , will have hypercholesrolemia?
a. <1%
b. 10%
c. 25%
d. 33%
e. 50%
can anyone give answer with explanation?
thanks.
Edited by m_l_e on 10/05/07 - 06:12 PM
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| sfk
Forum Elite
Topics: 47
Posts: 300
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c, 25%
1:2 chance of son being +ve, and then another 1:2 chance of his daughter being +ve.
thereore probability is 1/2 multiplied by 1/2 that is 1:4, or 25%
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