Question

Differentiate incomplete dominance and codominance.

Answer 1

• Incomplete Dominance:

1. In incomplete dominance, neither of the alleles is completely dominant to another allele rather combine and produce a new trait
2. New phenotype is formed due to character blending (not alleles)
3. Example: Pink flowers of Mirabilis Jalapa

• Co-dominance:

1. In co-dominance, both the alleles in a heterozygote are dominant and the traits are equally expressed (joint expression)
2. No formation of new phenotype rather both dominant traits are expressed, conjointly
3. Example: Red and white flowers of camellia