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Q.

In lac operon, the gene ‘i’ codes for 

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a

beta galactosidase

b

permease

c

repressor

d

transacetylase

answer is C.

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Detailed Solution

Gene ‘i’ of lac operon is a regulator gene that codes for the repressor protein lac repressor which binds to the operator to prevent transcription of structural gene and plays a role in negative regulation. 

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