12th Class Biology Sample Paper Biology Olympiad Sample Paper-3

  • question_answer
    Read the given statements and select the correct option.
    Statement-1: In insertional inactivation, blue colour produced by bacterial colonies indicates that the plasmid does not have an insert into the bacterial genome.
    Statement-2: Presence of insert results into insertional inactivation of P-galactosidase enzyme and the colonies do not produce any colour.

    A)  Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

    B)  Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

    C)  Statement 1 is true but statement 2 is false.

    D)  Both statements 1 and 2 are false.

    Correct Answer: A


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