The fraction of the population will have white flowers after the crossing of the heterozygotes is; 1/2
P = purple gene
p = white gene
Punnet squares shows the possible genotypes and probabilities of each genotype in the offspring of a cross:
Purple flower genotype (heterozygous) = Pp
White flower genotype = pp
Potential genotypes for offspring are Pp and pp;
According to the Punnett square, 2 of 4 offspring will have the Pp genotype and the other 2 will have pp genotypes;
This means 2 should be purple and 2 white which translates to the fact that there is a 50% chance of having either genotype, of being purple or white.
Read more about Heterozygote Crossing at; https://brainly.com/question/1542215
