Alleles

D
d
Phenotypes

D
d
D
d

Expected Phenotypes of Offspring

d
d
d
d
ALL
non-dimpled
ALL
dimpled
1⁄2 dimpled
1⁄2 non-dimpled
3⁄4 non-dimpled
1⁄4 dimpled
3⁄4 dimpled
1⁄4 non-dimpled