A cross is made between pea plant having round and yellow seeds with pea plant having wrinkled and green seeds. What is the probability of obtaining yellow-colored seeds in the ${\mathrm{F}}_2$generation?

When we cross pea plants having round and yellow seeds with pea plant having wrinkled and green seeds. The ${\mathrm{F}}_2$generation has phenotypes in the ratio of 9 (Yellow and round):3(Yellow and wrinkled):3(green and round):1(green and wrinkled). Therefore, the probability of getting yellow seed is (9+3)/16= 12/16= ¾.