Deppe371idn
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2. A tall plant (TT) is crossed with a short plant (tt). If the tall F1 pea plants are allowed to self-pollinate, (1 point) A.)the offspring will be of medium height B.)all of the offspring will be tall C.)all of the offspring will be short. D.)the offspring can be tall or short

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Kittymaniacidn
D) The offspring can be tall or short.

It's helpful to use a Punnet Square in this situation. We know that the F1 plants are all Tt (heterozygous) because they have to get a T from the TT parent and a t from the tt parent. Now we cross the Tt plants:

      T  |  t  |
T | TT | Tt |
t  | Tt  |  tt |

So, there will be some plants that are tall (TT or Tt) and some plants that are short (tt). Hope this helps! :)
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