Chapter 12, Problem 1A

Japanese four o’clocks that are red and tall are crossed to white short ones, producing an F₁ that is pink and tall. If these genes assort independently, and the F₁ is self-crossed, what would you predict for the ratio of F₂ phenotypes?

a. 3 red tall:1 white short

b. 1 red tall:2 pink short: 1 white short

c. 3 pink tall:6 red tall:3 white tall:1 pink short:2 red short:1 white short

d. 3 red tall:6 pink tall:3 white tall:1 red short:2 pink short:1 white short