3. Given that H = hitchhiker's thumb and h = straight thumb, A) What is heterozgous for hitchhiker's thumb?
B) what allele combination will express the recessive trait? Is this homozygous or heterozygous?
A) Heterozygous for hitchhiker's thumb would be represented as Hh.
B) The allele combination that expresses the recessive trait (straight thumb) is hh. This is homozygous, as there are two copies of the recessive allele (h).