Strains of petunias come in four pure-breeding colors: white, blue, red. and pur

Question

Strains of petunias come in four pure-breeding colors: white, blue, red. and purple. White petunias are produced when plants synthesize no flower pigment. Blue petunias arc red petunias are produced when plants synthesize blue or red pigment only. Purple petunias are produce: in plants that synthesize both red and blue pigment. The mixture of red and blue makes purple. Flower-color pigments are synthesized by gene action in two separate pigment-producing biochemical pathways. Pathway I contains gene. A that produces an enzyme to catalyze conversion of a colorless pigment designated white, to blue pigment. In Pathway 11. the enzymatic product of gene B converts the colorless pigment designated white to red pigment. The two genes assort independently. What are the possible genotype(s) for pure-breeding red petunias? Check all that apply. What are the possible genotype(s) for true-breeding blue petunias? Check all that apply. True-breeding red petunias are crossed to pure-breeding blue petunias, and all the F1 progeny have purple flowers. If the F1, are allowed to self-fertilize and produce the F2. what is the expected phenotypic distribution of the F2 progeny? Express your answer as four numbers separated by colons.

Explanation / Answer

Part B is Aabb AAbb

part A is aaBB aaBb

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