When two plants of the night beauty were crossed with pink and white (recessive trait) flowers, 50% of the offspring with white

When two plants of the night beauty were crossed with pink and white (recessive trait) flowers, 50% of the offspring with white flowers were obtained. What are the genotypes of parental forms?

the answer is Bb × bb
The inheritance of the color of the corolla in the night beauty is intermediate. BB – red; Bb – pink; bb is white.

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