JCECE Medical JCECE Medical Solved Paper-2007

  • question_answer
    Part of the plant which is cultured to obtain virus free clones is

    A)  Leaf           

    B)  root tip     

    C)  shoot tip     

    D)  embryo

    Correct Answer: C

    Solution :

     Seeds from virus infected plants generally do not contain the virus. Therefore sexual progeny are   usually   virus   free,   except   for new-infections. But this belief is not entirely correct. In case of asexually reproducing crops virus infections spread rapidly. This is because the vegetative propagules from virus infected plants contain virus particle hence in vegetatively propagated plants the virus get transmitted through propagule (rhizome/bulb/ tubers/root). But the growing bud is not infected (i.e., shoot tip are virus free).


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