CMC Medical CMC-Medical VELLORE Solved Paper-2014

  • question_answer
    A pure tall pea plant was reared in soil poor in the nutrition and reached the size of pure dwarf nea plant, if this plant is selfed, then the genotype in the\[{{F}_{1}}\text{-}\]generation is most likely to be         

    A)  all tall                                   

    B)  50% tall: 50% .dwarf

    C)  all dwarf           

    D)  Not possible: to predict

    Correct Answer: B

    Solution :

                    When a pure tall plant is cultured in poor soil, it become dwarf phenotypically (not genotypically), i.e., environmental variation (not hereditary variation). These phenotypically dwarf plants are actually tall plants, genotypically.


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