In a plant species, if the b allele (blue flowers) and the b allele (white flowers) are incompletely dominant (bb is light blue), what offspring ratio is expected in a cross between a blue-flowered plant and a white-flowered plant?

a. 3/4 blue:1/4 white

b. all light blue

c. 1/2 blue:1/2 white

d. 1/4 blue:1/2 light blue:1/4 white

e. 1/3 blue:1/3 light blue:1/3 white

Question

Biology

Guest

19 September, 13:41

In a plant species, if the b allele (blue flowers) and the b allele (white flowers) are incompletely dominant (bb is light blue), what offspring ratio is expected in a cross between a blue-flowered plant and a white-flowered plant?

a. 3/4 blue:1/4 white

b. all light blue

c. 1/2 blue:1/2 white

d. 1/4 blue:1/2 light blue:1/4 white

e. 1/3 blue:1/3 light blue:1/3 white

+1

Answers (1)

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Jackson Harrell · Answer 1

In a plant species, if the b allele (blue flowers) and the b allele (white flowers) are incompletely dominant (bb is light blue), an all light blue offspring ratio is expected in a cross between a blue-flowered plant and a white-flowered plant.