Question

the allele for hitchhiker's thumb is recessive to the dominant straight thumb. in a population of 500 students, 25% have hitchhiker's thumb. how many students would you expect to be homozygous dominant for the trait?

Answer 1

Answer: Of 125 students with hitchhiker's thumbs, 1/3rd would be homozygous dominant (41 students)

HH homozygous dominant
Hh heterozygous dominant
hH heterozygous dominant
hh homozygous recessive