In a genetic study, 80 people were found to have alleles for polydactyly. Only 36 of them were polydactylous. What is the extent of penetrance percentage? _______

In a genetic study, 80 people were found to have alleles for polydacty

1.	In a genetic study, 80 people were found to have alleles for polydactyly. Only 36 of them were polydactylous. What is the extent of penetrance percentage? _______
A.	15
B.	30
C.	45
D.	60
Answer» D. 60