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NEET2026BiologyChapterActual

Given below are two statements : Statement I: In the lac operon, the i gene codes for the repressor protein, and the term ' i ' is derived from the word inducer. Statement II: The y gene of the lac operon codes for permease, which increases the permeability of the cell to -galactosides. In the light of the above statements, choose the correct answer from the options given below :

Options

  1. AStatement I is true but Statement II is false
  2. BStatement I is false but Statement II is true
  3. CBoth Statement I and Statement II are true
  4. DBoth Statement I and Statement II are false

Correct answer

B. Statement I is false but Statement II is true

Step-by-step solution

In the lac operon, the i gene codes for the repressor protein. The term ' i ' does not refer to inducer, rather it is derived from the word inhibitor. Thus, Statement I is false. The y gene codes for permease, which increases the permeability of the cell to -galactosides (lactose). Thus, Statement II is true. Therefore, Statement I is false but Statement II is true. Answer: Statement I is false but Statement II is true

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