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  4. What does 'lac' refer to in what we call the lac operon ?

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Q. What does 'lac' refer to in what we call the lac operon ?

AIPMTAIPMT 2003Molecular Basis of Inheritance

Solution:

In lac operon, lac refers to lactose. The lac operator is a part of the structural genes (lac Z, lac Y, lac A and lac I). It is responsible for the uptake and initial catabolism of lactose.