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NEET2015ZoologyPrinciples of Inheritance and VariationActual

A gene showing codominance has

Options

  1. Aalleles tightly linked on the same chromosome.
  2. Balleles that are recessive to each other.
  3. Cboth alleles independently expressed in the heterozygote.
  4. Done allele dominant on the other.

Correct answer

C. both alleles independently expressed in the heterozygote.

Step-by-step solution

Both alleles are independently expressed in heterozygote during codominance. In codominance, the alleles of a gene pair are fully expressed resulting in offspring with a phenotype that is neither dominant nor recessive. Example: ABO blood group system.

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