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
- AStatement I is true but Statement II is false
- BStatement I is false but Statement II is true
- CBoth Statement I and Statement II are true
- 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