Biology
Grade-10
Easy

Question

The phenotypic ratio in co-dominance is___________.

  1. 1: 2: 1

  2. 3: 1

  3. 9: 3: 3: 1

  4. 9: 2: 2: 1

hintHint:

The phenotypic ratio for co-dominance is 1:2:1.

The correct answer is:

1: 2: 1


    • In codominance the alleles of a pair do not follow the law of dominance.
    • In this case, in an heterozygous organism the dominant trait does not express itself over the recessive trait.
    • Therefore in the heterozygous organism both the allele express themselves completely without any blending.