If F₂ progeny of dihybrid cross, the expected genotypic proportions of individuals homozygous for both dominant character is:

Solution: In typed dihybrid cross, the proportions of genotypes are

YYRR – 1         YYrr – 1

 YyRR – 2          Yyrr – 2

YYRr – 2           yyRr – 1

 YyRr – 4            yyRr – 2

Individuals homozygous for both dominant character are 1/16