Biology for IGCSE & O level - Inheritance (Section 2 - No. 2)
Which of the following statements are true regarding incomplete dominance?
The heterozygous phenotype is a blend of the two homozygous phenotypes.
Both alleles are fully expressed.
One allele masks the other.
The phenotype is determined by multiple genes.
Explanation
Incomplete dominance causes the heterozygote to have a phenotype intermediate to the two homozygotes.