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Somatic variation and Germinal variation...

Somatic variation and Germinal variation.

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Somaclonal variation

There are two opposing views about origin of modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variation of DNA however suggested African origin of modern man. What kind of observation on DNA variation could suggest this ? (a) Greater variation in Asia than in Africa (b) Greater variation in Africa than in Asia (c) Similar variation in Africa and Asia (d) Variation only in Asia and no variation in Africa

Knowledge Check

  • Somaclonal variation appears in plants:

    A
    Growing in polluted soil or water
    B
    Exposed to gamma rays
    C
    Raised in tissue culture
    D
    Transformed by recombinant DNA technology

  • Somaclonal variation can be obtained by:

    A
    Hybridisation
    B
    Tissue culture
    C
    Application of colchicine
    D
    Irradiation with gamma rays

  • Somaclonal variation can be obtained by:

    A
    Application of colchicine
    B
    Hybridisation
    C
    Irradiation with gamma rays
    D
    Tissue culture

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