Physics is not a branch of natural "sciencie".
The answer would be b I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you
to be honest I just wanted to say nice profile pic okay I'll leave u alone now
I believe the answer is that a dimpled chin is controlled by a single gene with multiple alleles and height is controlled by many genes. Alleles are alternative forms of a gene, and they are responsible for differences in phenotypic expression of a given trait. A gene for which at least two alleles exist is said to be polymorphic.
