One student (researcher) wants to cross pure tall plant (TT) with pure dwarf (tt) plant, what would be the F1 and F2 generations? Explain.
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When a tall (TT) and a dwarf (tt) plant is crossed together then it will form a Tt (tall) as a first generation as one part of the tall plant and one of the dwarf plants will cross together.
In the next generation, the tow first generation plants will be crossed such that Tt and Tt, then the result will be TT (tall), Tt(tall), Tt(tall) and tt(short).
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- when a pure tall plant (TT) crossword with your dwarf plant (tt) ,all offsprings in F1 generation are tall
- but any plant that has a T factor will be tall
- so in F2 75% of plants are tall and 25% of plants are dwarf. thus, the phenotype ratio 3:1
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