Principles of Inheritance and Variation Question 87
87. Alleles that produce independent effects in their heterozygous condition are called
(a) codominant alleles
(b) epistatic alleles
(c) complementary alleles
(d) supplementary alleles
Show Answer
Answer : a
Hints & Solution
(a) Epistasis is the suppression of the normal phenotypic expression of the gene by a nonallelic gene. Complementary genes are two independent genes present on different gene loci which assist each other in expressing a trait. Supplementary genes are two independent genes present on different gene loci, each of which may produce its own trait and interact when present together in dominant state to produce a new trait.
