If two alleles influencing the expressed phenotype for a trait are equally expressed,what is this an example of?
A)polymorphism
B)codominance
C)pleiotropy
D)Mendelian inheritance

Question

Quizplus · Accepted Answer

Codominance occurs when both alleles in a heterozygote are equally expressed and contribute to the phenotype. This is different from incomplete dominance, where the heterozygote shows an intermediate phenotype between the two homozygotes. Polymorphism refers to the presence of multiple forms of a gene or DNA sequence in a population, and pleiotropy refers to a single gene influencing multiple traits. Mendelian inheritance refers to inheritance patterns that follow the laws of segregation and independent assortment discovered by Gregor Mendel. None of these choices fully describe a situation where both alleles are equally expressed, except for codominance.

If Two Alleles Influencing the Expressed Phenotype for a Trait