If you are conducting a monohybrid cross of tall (dominant) and dwarf (recessive) plants, the recessive trait in the F1 plants
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the F1 plants will be heterozygous ie. Tt and Tt
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The F1 cross will result the following.
One in number: RR
One each in number: Rr, rR
One in number: rr.
This is the outcome of monohybrid cross. The RR is the dominant allele. And the rest all are recessive allele. The monohybrid ratio is: 1:2:1. Monohybrid cross is based on the first law of genetics i.e Law of Segregation. A monohybrid cross is a mating between two organisms with different variations at one genetic chromosome of interest, here it's 'R'
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