Match List I with List II: List I List II A. Gene 'a' I. Beta-galactosidase B. Gene 'y' II. Transacetylase C…

Match List I with List II: 

List I

List II
A. Gene 'a'  I. Beta-galactosidase  
B. Gene 'y' II. Transacetylase
C. Gene 'i' III. Permease
D. Gene 'z' IV. Repressor protein

Choose the correct answer from the options given below: 

  1. A-III, B-I, C-IV, D-II
  2. A-II, B-I, C-IV, D-III
  3. A-II, B-III, C-IV, D-I
  4. A-III, B-IV, C-I, D-II

Solution

Gene 'a'
  • The structural gene of the lac-operon which codes for Transacetylase enzyme.
Gene 'y'
  • The structural gene of the lac-operon which codes for Permease enzyme.
Gene 'i'
  • The i gene codes for the repressor of the lac operon.
  • The repressor binds to the operator region to stop the transcription of structural genes.
Gene 'z'
  • The structural gene of the lac-operon which codes for b-β-Galactosides enzyme.

Asked in: NEET 2023 (All India)

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