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  4. If a dwarf plant is treated with gibberellins it becomes tall and this plant now crosses with pure tall plant then progeny of first generation (Fi) is :

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Q. If a dwarf plant is treated with gibberellins it becomes tall and this plant now crosses with pure tall plant then progeny of first generation (Fi) is :

Bihar CECEBihar CECE 2005

Solution:

If a dwarf plant is treated with gibberellins it becomes tall but its genetic makeup is similar to other dwarf plants. Therefore, offspring
obtained from cross between dwarf plant (gibberellin promoted tall) and pure tall plant will be heterozygous tall.

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