[Campbell Biology P.322] What is the predicted genotypic ratio of the F2 generation in a Pp ... | Practice Question

What is the predicted genotypic ratio of the F2 generation in a Pp x Pp cross?

  • A: 1 PP : 2 Pp : 1 pp
  • B: 3 purple : 1 white
  • C: 1 Pp : 1 pp
  • D: All Pp

Explanation

By examining the four boxes inside the Punnett square in Figure 14.5, we can count the resulting genotypes: one box is PP, two boxes are Pp, and one box is pp. This gives the classic 1:2:1 genotypic ratio for a monohybrid cross.