Question

Sol.(c) [Key Concept: Dominance — Definition] A gene (allele) is said to be dominant if it expresses its phenotypic effect in BOTH homozygous (AA) and heterozygous (Aa) conditions. A recessive gene expresses itself only in homozygous condition (aa). The dominant allele masks the effect of the recessive allele when present together (Aa shows dominant phenotype). This is the basis of Mendel's Law of Dominance.