Question

How does Gregor Mendel's work demonstrate support for the concepts of dominant and recessive alleles?

Answer 1

From the proportions of phenotypes in the offspring. If Genes would be equal you would get 1/4 A, 1/4 B and 1/2 AB; but you often get 1/4 A and 3/4 B. I hope that this is the answer that you were looking for and it has helped you.