A plant with red petals is crossed to a plant with blue petals. (red X blue)....
A plant with red petals is crossed to a plant with blue petals. (red X blue). The F1 generation are all purple petals. When the F1 plants self-fertilize (purple X purple) the F2 generation are purple:red:blue:white in a 9:3:3:1 ratio. Draw the biochemical pathway for the pigments, showing where each gene acts in the pathway.
Homework Answers
From the given information,
Red = RR
Blue = BB
Purple = RrBb
White = rrbb
Parental cross: RRbb X rrBB
F1 progeny: RrBb
F1 selfing: RrBb X RrBb
F2 progeny:
Red = RRbb = 3
Blue = rrBB = 3
Purple = RrBb = 9
White = rrbb = 1
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