Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson

Exercise 1

A dihybrid cross between a plant with long smooth leaves and a plant with short hairy leaves produces a long smooth F 1. If this F 1 is allowed to self-cross to produce an F 2 , what would you predict for the ratio of F 2 phenotypes
A) 9 long smooth:3 long hairy:3 short hairy:1 short smooth
B) 9 long smooth:3 long hairy:3 short smooth:1 short hairy
C) 9 short hairy:3 long hairy:3 short smooth:1 long smooth
D) 1 long smooth:1 long hairy:1 short smooth:1 short hairy