Cystic Fibrosis..?
Wednesday, August 18th, 2010 at
10:56 pm
Truth asked:
Cystic fibrosis (CF) is an autosomal recessive disorder. If two phenotypically normal parents have a child with CF, what is the probability that their next child will be a phenotypically normal girl?
Tagged with: Autosomal Recessive Disorder • Cf • Parents
Filed under: Cystic Fibrosis
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75% unaffected
25% affected
Odds of a girl 1:2
Odds of a phenotypically normal child 3:4
Odds of a phenotypically normal girl in the next pregnancy 1/2 x 3/4 = 3/8 37.5% chance