Consider three yellow, round pea, labeled I, J and K. Each was grown into a plant and crossed to a plant grown from a green, wrinkled pea. Exactly 100 peas issuing from each cross were sorted into phenotypic classes as follows: I: 100 yellow, round J: 51 yellow, round; 49 green, round K:24 yellow, round; 26 yellow, wrinkled; 25 green, round; 25 green, wrinkled What were the genotypes of I, J and K (Use the symbols Y, R for the dominant alleles that control the traits, yellow and round respectively)

 Green and wrinkled pea: yyrr

I: YYRR x yyrr
G: YR x yr
F
1: YyRr (100 yellow, round)
K: YyRr x yyrr
G:
J: YyRR x yyrr
G: YR; yR x yr
F
1: YyRr (51 yellow, round)
yyRr (49 green, round)
YR; Yr
yR; yr
x yr
F
1: YyRr; 24 yellow, round
Yyrr; 26 yellow, wrinkled
yyRr; 25 green, round
yyrr; 25 green, wrinkled