What proportion of the offspring of a cross between two heterozygous parents will exhibit the recessive condition phenotypically
Answer Details
When two heterozygous parents (Aa x Aa) are crossed, their genotypes can be represented as follows:
AA Aa Aa aa
Each parent can produce two types of gametes: A and a. The possible genotypes of the offspring can be obtained by combining the gametes from each parent.
The possible genotypes of the offspring are: AA, Aa, Aa, aa.
Only the offspring with the genotype aa will exhibit the recessive trait phenotypically. Therefore, the proportion of the offspring that will exhibit the recessive condition is 1/4.