An F1 plant that is homozygous for shortness is crossed with a heterozygous F1 plant. What is the probability that a seed produced from this cross will produce a tall plant?

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I suppose shortness is a recessive trait so first plant's genotype would be like aa (A, a - gene of height, A for dominant tall height, a for recessive short height) Heterozygous plant must be Aa aa x Aa If you create a Punnet's square you'll see that half of the offspring will be heterozygous (= tall, because tall height is dominant) and the other half will be homozygous for shortness (aa). So the probability the seed will produce tall plant will be like 50%

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