AP BIOLOGY

Detailed explanation-1: -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: -Definition. Codominance occurs when two different versions – a.k.a. “alleles” – of the same gene are present in a living thing, and both alleles are expressed separately in different parts of an organism. Instead of one trait being dominant over the other, both traits appear.

Detailed explanation-3: -Codominance. Codominance refers to the dominance in which the two alleles or traits of the genotypes (of both homozygotes) are expressed together in offspring (phenotype).

Detailed explanation-4: -A trait resulting from an allele that is independently and equally expressed along with the other. An example of codominant trait is blood type, i.e. a person of blood type AB has one allele for blood type A and another for blood type B.

Detailed explanation-5: -If alleles for a trait are codominant, they will both be equally and fully expressed. This is a bit different than incomplete dominance, in which the traits are blended. A common example given to describe codominant traits is the ABO blood typing system. There are three possible alleles for ABO blood type: A, B, and O.