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J & K CET Medical J & K - CET Medical Solved Paper-2003

  • question_answer
    An extra chromosomal DNA which can be used as vector in gene cloning is called :

    A)  transposon                       

    B)  intron

    C)  exon                                    

    D)  plasmid

    Correct Answer: D

    Solution :

                     Plasmids are extra chromosomal molecules of DNA that replicate independently of the bacterial chromosomes. They are normally closed, circular super coiled. They are used as a vector for cloning and genetic engineering.


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