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-flowered plants, 50 cream-flowered plants, and 65 white-flowered plants.
(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-flowered F2 plants were crossed among themselves? |
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