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 trait. If true- breeding red long radishes are crossed with true- breeding white oval radishes, the F₁will be expected to be which of the following?

Question

Quizplus · Accepted Answer

The cross between a red-flowered and white-flowered plant yields all-purple offspring, which indicates that purple is the dominant trait in flower color. This means that the offspring from the cross between red long radishes and white oval radishes will all have purple flowers, regardless of whether they are long or oval. However, since long is the dominant trait in radish shape, the offspring will all be long. Therefore, the expected phenotype of the offspring is purple and long (Choice C).

Radish Flowers May Be Red, Purple, or White