12th Class Biology Sample Paper Biology - Sample Paper-8

  • question_answer
    Define insertional inactivation. What is its significance?

    Answer:

    When a recombinant DNA is inserted into the coding sequence of enzyme beta galactosidase (P-gal), it results into the inactivation of the enzyme, which is termed as insertional inactivation. It helps in the selection of recombinants.   


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