NEET BIOLOGY

Detailed explanation-1: -Definition. Codominance, as it relates to genetics, refers to a type of inheritance in which two versions (alleles) of the same gene are expressed separately to yield different traits in an individual.

Detailed explanation-2: -Closely related to incomplete dominance is codominance, in which both alleles are simultaneously expressed in the heterozygote.

Detailed explanation-3: -Indeed, “codominance” is the specific term for a system in which an allele from each homozygote parent combines in the offspring, and the offspring simultaneously demonstrates both phenotypes. An example of codominance occurs in the human ABO blood group system.

Detailed explanation-4: -A gene showing codominance has both alleles independently expressed in the heterozygote.

Detailed explanation-5: -In complete dominance, only one allele in the genotype is seen in the phenotype. In codominance, both alleles in the genotype are seen in the phenotype.