Principles Of Mendelian Inheritance

Punnett Square: Autosomal Phenotypic Distribution

In this scenario, we are crossing a homozygous dominant female (AA) with a heterozygous male (Aa) for a single locus.

Punnett Square:

Genotypic Distribution:

• 50% AA (homozygous dominant)
• 50% Aa (heterozygous)

Phenotypic Distribution:

Since both AA and Aa genotypes express the dominant phenotype, 100% of the offspring will exhibit the dominant trait.