NEET Biology question
Match the components of the lac operon of E. coli given under Column I with their function listed in Column II. Choose the answer with the correct combination of alphabets from the two columns.
| Column-I | Column-II | |---|---| | (A) Structural gene | (1) Binding site for repressor protein | | (B) Operator gene | (2) Codes for repressor protein | | (C) Promoter gene | (3) Induces lactose transport from the medium | | (D) Regulator gene | (4) Codes for enzyme proteins | | | (5) Binding site for RNA polymerase |
Answer: (C)
Solution
The structural genes code for enzyme proteins (A-4), the operator is the binding site for the repressor protein (B-1), the promoter
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