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Question

‘Lac’ in lac operon refers to
  1. Lactic acid
  2. Lactose
  3. Lactobacillus
  4. Levulose


Solution

The correct option is B Lactose
Lac operon is the gene regulatory system used by E.coli to digest the disaccharide lactose to glucose and galactose. So the ‘lac’ refers to lactose.

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