Homework Answers
31e. all of the above
as it is visible from the pedigree that all the affected individuals will have heterozygous parents.
Aa x Aa
| A | a | |
| A | AA | Aa |
| a | Aa | aa |
33. The probability of having II-1 and II -3 is more of being heterozygous than homozygous. The probability of being heterozygous(Aa) is 2/3 and the probability of being homozygous(AA) is 1/3, so we assume that both are carriers. If they marry the probability of getting an affected child(aa) becomes 1/4.
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