EQ: How can we make predictions about the inheritance of TWO traits? Chapter 11-3: Dihybrid Crosses But first, a little review…

Subject ASubject BSubject C Genotype for Fur Color GGGggg Phenotype for Fur Color Gray Fur White Fur

Subject ASubject BSubject C Genotype for Fur Color GGGggg Phenotype for Fur Color Gray Fur White Fur

GGBb (male) × GgBb (female) G G gG g B b B bB b G G g B B b b

G g g gg g G GG G g gg g g B b B BB B B BB B B BB B GgBb (male) × ggBB (female)

GGBb (male) × GgBb (female) G G gG g B b B bB b G Solid Gray Fur G Solid Gray Fur G g Solid Gray Fur G g Solid Gray Fur B Green eyes B b Green eyes B b Green eyes b Blue eyes Only 75% of the offspring will have green eyes.

GGBb (male) × GgBb (female) G G gG g B b B bB b G G g B B b b

GgBb (male) × GgBb (female) G g G gG g B b B bB b G Solid Gray Fur G g Solid Gray Fur G g Solid Gray Fur g Striped Gray Fur B Green eyes B b Green eyes B b Green eyes b Blue eyes

GgBb (male) × GgBb (female) G g g gg g B b B bB b G gg G gg B B b b

GgBb (male) × GgBb (female) B b b bb b b B bb G g g gg g g G gg