MHT CET · BIOLOGY · STD 12 - 4. Molecular Basis of Inheritance
Given below is the representation of lac operon of E. coli. Identify I and II from the options given below.
| I | Promoter | II | Z | Y | A |
- A I - \(\beta\)-galactosidase gene, II - Regulatory gene
- B I - Regulatory gene, II - Operator
- C I - Operator, II - \(\beta\)-galactosidase gene
- D I - Operator, II - Regulatory gene
Answer & Solution
Correct Answer
(B) I - Regulatory gene, II - Operator
Step-by-step Solution
Detailed explanation
This gene controls the operator gene in cooperation with an inducer present in the cytoplasm. Regulator gene precedes the promoter gene. It precedes the structural genes. This controls the functioning of structural genes.
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