NEET Sample Paper NEET Sample Test Paper-17

  • question_answer The wild type E. coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the following changes takes place?

    A)  The lac operon is repressed

    B)  All operons are induced

    C)  The lac operon is induced

    D)  E. coli cells stop dividing

    Correct Answer: C

    Solution :

    If the Escherichia coli bacteria grow in normal glucose medium and when transferred to a medium containing lactose, then the lac operon is induced. Hence, the correct option is (c).

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