PATHOLOGY

Detailed explanation-1: -Individuals with genotypes AA and aa are homozygotes (i.e., they have two copies of the same allele). Individuals with genotype Aa are heterozygotes (i.e., they have two different alleles at the A locus).

Detailed explanation-2: -Individuals that are homozygous have the same allele. They can be homozygous dominant, with two dominant “A” alleles, or homozygous recessive, with two recessive “a” alleles. They can also be heterozygous, meaning they have two different alleles for that gene. This is typically shown as “Aa."

Detailed explanation-3: -Transmission Genetics In the F1 generation, all of the hybrids resembled the parent with the dominant trait. The genotype of these monohybrid, or heterozygous, plants can be represented as genotype Aa, with the uppercase letter representing the dominant allele and the lowercase letter representing the recessive allele.

Detailed explanation-4: -Heterozygous refers to having different alleles for a particular trait. If the two versions are different, you have a heterozygous genotype for that gene. The relationship between the two alleles affects which traits are expressed.