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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 trait.
-If true-breeding red long radishes are crossed with true-breeding white oval radishes, the F1 will be expected to be which of the following?

Question

Quizplus · Accepted Answer

According to Mendelian genetics, when true-breeding red long radishes are crossed with true-breeding white oval radishes, the F1 generation will exhibit the dominant traits of the parents. In this case, the dominant traits are long (for shape) and purple (for color). Therefore, the F1 generation is expected to be purple and long, which corresponds to choice D.

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