question_answer

In Mirabilis a hybrid for red (RR) and white (rr) flower produces pink (Rr) flower. A plant with pink flower is crossed with white flower the expected phenotypic ratio is:

A)  red : pink : white\[(1:2:1)\]

B)  pink : white\[(1:1)\]

C)  red : pink\[(1:1)\]

D)  red : white\[(3:1)\]

Correct Answer: B

Solution :

Mirabilis jalapa shows incomplete dominance. The ratio pink and white flower will be 1 : 1