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 flower colour trait in radishes is an example of which of the following inheritance patterns?

Question

Quizplus · Accepted Answer

The fact that a cross between a red-flowered plant and a white-flowered plant produces all-purple offspring indicates that the red and white alleles are incompletely dominant, as neither dominates the other and in combination, they produce a new phenotype. This phenomenon is known as incomplete dominance.

Radish Flowers May Be Red, Purple or White