The allele frequency represents the incidence of a gene variant in a population. Alleles are variant forms of a gene that are located at the same position, or genetic locus, on a chromosome.

Penetrance is a measure of the proportion of individuals in a population carrying a particular allele that expresses the related phenotype. In contrast to multifactorial diseases, Mendelian ...

The tall allele is dominant and is shown as T. The short allele is recessive and is shown as t. Complete this Punnett square to show the possible allele combinations of the offspring produced when ...