Biology – The roles of genes in determining the phenotype | e-Consult

F1 Generation:

Cross: PP (purple) x pp (white)

Punnett Square:

Genotype: All F1 offspring will be Pp (heterozygous).

Phenotype: All F1 offspring will have purple flowers because purple (P) is dominant over white (p).

F2 Generation:

Cross: F1 generation (Pp) x F1 generation (Pp)

Punnett Square:

Genotype Ratio: 1 PP : 2 Pp : 1 pp

Phenotype Ratio: 3 purple : 1 white