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 color trait in radishes is an example of which of the following?

Question

Quizplus · Accepted Answer

This is an example of incomplete dominance, where the heterozygous offspring (red and white alleles) exhibit an intermediate phenotype (purple). If it were a multiple allelic system, there would be more than two possible alleles for the flower color trait. Sex linkage and codominance do not apply in this scenario.

Radish Flowers May Be Red, Purple, or White