A white-flowered plant is crossed with a true-breeding, pur…

Biology Principles of Inheritance and Variation Single Correct MCQ

Published on: August 21, 2026

A white-flowered plant is crossed with a true-breeding, purple-flowered pea plant. They generate two F1 offspring, which are crossed to produce 10 F2 plants. The F2 has five plants with purple flowers and five with white flowers. plants. Which of the following is the best explanation for the F2 results?

They are exactly what is expected from Mendel's laws.

They are similar to, but n'ot exactly, what Mendel's laws predict.

They are rather different from predictions, probably due to small sample size.

The F1 plants must have suffered a mutation before mating.

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