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They produce many offspring
testcross
they reproduce quickly -apex
Mendel used all tall plants in his F1 experiment because that was the offspring from his cross of a pure tall plant and a pure short plant. By crossing two of the tall plants from F1, he proved that the recessive gene (t) was still present in the F1 generation, despite the phenotypes of all of these plants being tall. (The result of the F1 cross gave 3 tall plants and 1 short plant.)
He used pea plants for his genetics experiment.
He needed a control group. *Apex*
They produce many offspring
pea plant
They produce many offspring
They produce many offspring
To validate the results of his experiment.
they reproduce quickly -apex
testcross
Mendel used all tall plants in his F1 experiment because that was the offspring from his cross of a pure tall plant and a pure short plant. By crossing two of the tall plants from F1, he proved that the recessive gene (t) was still present in the F1 generation, despite the phenotypes of all of these plants being tall. (The result of the F1 cross gave 3 tall plants and 1 short plant.)
He used pea plants for his genetics experiment.
Gregor Mendel didn't really use any technology. He basically observed the pea plants traits generation after generation, and the outcome of the same experiment repeated.
He needed a control group. *Apex*