Question

Sam is heterozygous at the locus for the gene that determines whether you have hitchhikers thumb to bend 90 degrees back. You find out that hitchhikers thumb is recessive and having a normal thumb is dominant. Based on that, you expect Sam to have....
a.) normal thumbs.
B.) hitchhikers thumbs.
C.). One hit hi thumb and one normal thumb.

Answer 1

A. because he’s heterozygous, it means he has both chances to have a normal or hitchhikers thumb, but because hitcherhikers thumb is recessive, a normal thumb is the dominant trait

Answer 2

A. Because it is heterozygous Which means he has a dominant trait