Which functional group is responsible for the sour taste of citrus fruits?

Biology 1c cumulative exam i need awsners

1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)

Sickle cell amelia is a condition condition where the red blood cells are deformed which is affected by sickle cell amenia