Name the genes that constitute an operon. How does lac operon get switched on in the presence of lactose?
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It codes for transacetylase. All genes involved in lac operon are required for metabolism of lactose. Lactose acts as an inducer for lac operon since it regulates the switching on and off of the operon. Inducer binds with the protein product of gene i (repressor) and inactivates it
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