1.

a cross was carried out between a pure bred tall pea plant and a pure bred dwarf pea plant and F1 progeny was obtained Later the F1 progeny was selfed to obtain F2 progeny

Answer» NT generation there were TALL(TT) and dwarf(tt) pea plants which were cross POLLINATED to get F1 generation. In F1 generation, all plants were tall and no dwarf plant were obtained. It means that T is dominant over t. Though the dwarfness trait was INHERITED it was not EXPRESSED. In F2 generation one quarter of pea plants were dwarf with genotypic ratio 1:2:1 and phenotypic ratio 3:1.


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