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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance3 Marks
Question
How are the structural genes activated in the lac operon in E. coli?
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Answer

Lactose acts as the inducer, binds with repressor protein, frees operator gene, RNA polymerase freelymoves over the structural genes, transcribing lac mRNA, which in turn produces the enzymes responsible for the digestion of lactose A complete labelled diagram depicting the concept can be evaluated in lieu of explanation.

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