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    Enzyme Induction

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    1. What are the advantages to a microbe of having inducible enzymes?

    2. What are the advantages to a microbe as a consequence of such (inducible) an arrangement of genes, and what is this arrangement called?

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    Inducible enzymes are ones which are either not active or not produced unless their substrate is present or product is needed. This means that the enzyme may need a co-factor to activate it or de-repress it. This may occur at the level of the enzyme or at the level of gene expression.

    Take for example the Lac operon. The unit contains a repressor protein, a promoter, an operator and three genes (lac Z, Y and A) ...

    Solution Summary

    Short paragraphs explaining what inducible enzymes are and how this occurs at the level of transcription followed by specific answers to the given questions. Web references provided.