Question

In a certain variety of plants, a cross between a red-flowered plant and a white-flowered plant produced an all-red flower F1. In the F2 there were 140 red, 50 cream, and 65 white.
(a) Offer an explanation for this F2 ratio.
(b) What ratio would be produced in a testcross of the F1 hybrid?
(c) What ratio would be produced if all the white F2 plants were crossed among themselves?

Answer

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