BotanyIf a silent mutation occurs in the lac z gene of the lac operon in E.coli:

If a silent mutation occurs in the lac z gene of the lac operon in E.coli:

  1. A

    There is no synthesis of β galactosidase but transacetylase and permease are synthesized

  2. B

    Synthesis of all enzymes is stopped

  3. C

    Synthesis of β galactosidase, transacetylase and permease continues unhindered.

  4. D

    Repressor molecule cannot bind to operator even in absence of lactose

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    Solution:

    A silent mutation is a change in the sequence of nucleotide bases which constitutes DNA, without a subsequent change in the amino acid or the function of the overall protein. Therefore, if a silent mutation occurs in the lac z gene of the lac operon in E.coli synthesis of β galactosidase, transacetylase and permease continues unhindered

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