Incomplete dominance is a term in
genetics that refers to the situation where an
organism inherits a blended
phenotype instead of just the dominant
trait, when both the dominant and
recessive[?] alleles are present in the
genotype. For instance, in
four-o'-clocks[?] and
snapdragons[?], crossing red and white produces pink.
Examples for incomplete recessiveness include Sickle cell anaemia in humans.
For a more detailed treatment, see Dominance Relationships.