Question

A purebred purple flower is crossed with a purebred white flower. What would be the genotypic ratio of the offspring knowing that purple is dominant over white?

a) 100% Pp
b) 50% Pp and 50%pp
c) 100% PP
d) 25%PP, 50% Pp and 25%pp

Answer 1

The genotypic ratio of the offspring from a cross between a purebred purple flower and a purebred white flower is 50% Pp and 50%pp.

Step-by-step explanation:

In a cross between a purebred purple flower and a purebred white flower, where purple is dominant over white, the genotypic ratio of the offspring would be:

• 50% Pp (heterozygous purple)
• 50% pp (recessive white)

This means that half of the offspring would inherit one purple allele and one white allele (Pp), and the other half would inherit two white alleles (pp).