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Radish flowers may be red, purple, or white. A cross between a red-flowered plant and a white-flowered plant yields all-purple offspring. The part of the radish we eat may be oval or long, with long being the dominant characteristic.
-The flower color trait in radishes is an example of which of the following?
A) a multiple allelic system
B) sex linkage
C) codominance
D) incomplete dominance
E) epistasis

Question

Quizplus · Accepted Answer

The inheritance of flower color in radishes shows incomplete dominance, as the offspring of a cross between a red-flowered plant and a white-flowered plant have all-purple flowers. This indicates that neither the red allele nor the white allele is completely dominant over the other, resulting in a blending of colors. The other options (multiple allelic system, sex linkage, codominance, and epistasis) are not applicable to this scenario.

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