Essentials of Biology 4th Edition by Sylvia Mader ,Michael Windelspecht

Exercise 5

When two monohybrid round squashes are crossed, the offspring ratio is ¼ flat: ½ oblong: ¼ round. Squash shape, therefore, is controlled by incomplete dominance. What offspring ratio would you expect from a cross between a plant with oblong fruit and one with round fruit?
A) all oblong
B) all round
C) ¾ oblong: ¼ round
D) ¾ round: ¼ oblong
E) ½ oblong: ½ round