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INCOMPLETE DOMINANCE
Incomplete Dominance: The heterozygous genotype produces a phenoytype that falls in between the dominant trait and the recessive trait.e.g. Four ‘O’ clock plant
Incomplete Dominance
(1822-1884)Gregor Johann Mendel
Phenotypic ratio:- 1:2:1Genotypic ratio :- 1:2:1
Fig. 13.7, Incomplete dominance in chickens
The golden palomino horse is a cross between a white and a brown horse. This is another example of incomplete dominance: the colors appear to blend in the horse’s hairs.
Phenotypic & genotypic ratio:- 1:2:1
X
Purebred brown X purebred albino :-
This is a hypomelanistic cornsnake (tannish-orange)
sperm
eggs
mother
father
C2C1
C2C1
C2C1 C2
C1
C1C1 C1C2
C1C2 C2C2
In humans, a gene affecting hair texture (curly, wavy, straight) shows incomplete dominance.
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