A flower produces a purple pigment using the biochemical pathway below: gene D g
ID: 52971 • Letter: A
Question
A flower produces a purple pigment using the biochemical pathway below:
gene D gene E gene G
enzyme 1 enzyme 2 enzyme 3
white 1 ------------------> white 2-------------------> white 3 -----------------> purple
You crossed a white flower known to be ddEEGG with a white flower of unknown genotype, and the offspring were white. Interpret these results in 1-2 sentences.
Explanation / Answer
Given that the we crossed a white flower known to be ddEEGG with a white flower of unknown genotype, and the offspring were white. This may be because of absence of enzyme 3, which causes all the flowers to be white.