Why is the sequence of dna important?

a. it is needed to build new kinds of organisms.
b. it makes sure there will be no mistakes in the information.
c. it determines protein structure.
d. it is used to create copies of cells.

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?