Answer: The probability of producing a dominant homozygous offspring is 25% or 1/4.
Explanation: From the cross Aa x Aa is obtained offspring with genotypes: 1) dominant homozygous (AA, 25% or 1/4), 2) Heterozygous (Aa, 50% or 1/2) and 3) Recessive homozygous (aa, 25% or 1/4).
