Alleles which show independent effect are called ____________.
A
Supplementary alleles
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B
Codominant alleles
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C
Epistatic alleles
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D
Complementary alleles
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Solution
The correct option is B Codominant alleles
Codominant alleles are the alleles that show the independent effect and both the alleles are expressed equally in the phenotype of the organism e.g., blood grouping (AB blood group).
Complementary genes are non-allelic genes that independently show a similar effect but produce a new trait when they are present together in the dominant form.
Supplementary genes are a pair of non-allelic genes that produce their effect independently in the dominant state while the dominant allele of the second gene (supplementary gene) needs the presence of another gene for its expression.
Epistasis can occur when a recessive genotype masks the actions of another gene.