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When the F1 tall plants were self-pollinated, what was seen in the F2 generation?

Question
When the F1 tall plants were self-pollinated, what was seen in the F2 generation?
All F2 plants were tall
About one quarter of F2 plants were short, the rest tall
All F2 plants were short
F2 plants were all medium height
Answer
About one quarter of F2 plants were short, the rest tall
Detailed Explanation
The chapter states that in the F2 generation from self-pollinated F1 tall plants, one quarter of the progeny are short.
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