In some flowers red coloration is incompletely dominant to blue flowers resulting in purple flowers. Which genotypic ratio would be expected in the offspring of one blue and one purple flower?
O A. 1 RR:2 RB:1 BB
OB. ORR:4 RB: 0 BB
OC. 2 red: 2 purple : 0 blue
OD. ORR:2 RB:2 BB

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

i don't have a definite answer, but i would assume not based on my experiences with my friend when we both were taking a spanish course; however, it would probably still be to your benefit to look at what questions she received, just in case. a language course and a science course differ greatly, after all.