Galactosemia is a recessive human disease that is treatable by restricting lactose and glucose in the diet. susan smithers and h
er husband are both heterozygous for the galactosemia gene. if susan and her husband have four children, what is the probability that: (1 point each)
1 answer:
There are 3
exclusive mutually birth orders that could
make two
affecteds and 1 unaffected - unaffected child first born, unaffected child
second born,
and unaffected child third born. Thus, there is a 3/64 + 3/64 + 3/64
= 9/64
chance that 2 out of 3 children will be affected.
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