Question

a purple flower with an unknown genotype is crossed with a white flower .Determine the genotype of the purple if purple (P) is dominant and white (p) is recessive

Answer 1

(Pp is the purple flower with the unknown genotype, pp is the white flower)

First scenario:
Pp x pp
first generation: Pp Pp pp pp (two purple, two white flowers)

Second scenario:
PP x pp
second generation : Pp Pp Pp Pp (four purple flowers)