NEET PG DENTAL EXAM

Detailed explanation-1: -A homozygous recessive allele combination contains two recessive alleles and expresses the recessive phenotype. For example, the gene for seed shape in pea plants exists in two forms, one form (or allele) for round seed shape (R) and the other for wrinkled seed shape (r).

Detailed explanation-2: -A homozygous dominant individual has two of the same dominant alleles for a gene. For example, a plant that is homozygous dominant for the red flower color allele has the genotype RR.

Detailed explanation-3: -Dominant and Recessive Alleles If the genotype for seeds was Rr (where R is dominant and r is recessive), R would supersede the recessive gene and the plant would express a round seed phenotype.