The flowers of snapdragons are red, pink or white. Crossing homozygous red snapdragons with homozygous white snapdragons produces offspring that have pink flowers. Which of the following crosses would produce the highest percentage of white flowers?
A) Red x white
B) Pink x pink
C) Red x pink
D) Pink x white
E) A and B are correct as they would produce the same number of white flowers.

Question

Quizplus · Accepted Answer

Crossing a pink snapdragon (which is heterozygous, having one red allele and one white allele) with a white snapdragon (which is homozygous for the white allele) would produce the highest percentage of white flowers. This is because half of the offspring would receive a white allele from both parents, resulting in white flowers.

The Flowers of Snapdragons Are Red, Pink or White