Gregor Mendel experimented with pea plants and discovered how traits are passed from one generation to another. In Mendel’s experiment, he crossed a tall pea plant (TT) with a short pea plant (tt). If four plants are produced from the two parent plants, which of the following phenotypical traits is most likely to be presented in the offspring?
Four tall plants
Tt, Tt, Tt, Tt. When a tall (TT) plant is crossed with a short (tt) plant, the resulting offspring will all be tall (their phenotype) but be carriers of the short gene. This is because the tall plant only has a T to donate, and the short plant only has a t to donate. Each offspring gets one from each parent, so because the tall one gives the T and the short one gives the t, the offspring will all be Tt.
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