how do mendel experiment show that traits may be dominant and recessivr?(2)marks
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Mendel demonstrated that traits can be either dominant or recessive through his monohybrid cross. He crossed true-breeding tall (TT) and dwarf (tt) pea plants. The seeds formed after fertilisation were grown and the plants that were formed represent the first filial or F1 generation.
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When he self-pollinated F1 plants, in the F2 generation he obtained tall and dwarf plants in the ratio 3:1. Thus as three-fourths of the plant in an F2 generation are tall and one-fourth is dwarf so tall is a dominant trait whereas dwarf is a recessive trait which expressed itself only in homozygous condition.
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