NEET2013Botany-Lac Operon
NEET 2013 Botany Gene Expression MCQ Question
Type: MCQ-conceptual-Medium-Class 12
In an inducible operon, the genes are:
A
usually not expressed unless a signal turns them 'on'
B
usually expressed unless a signal turns them 'off'
C
never expressed
D
always expressed
Correct Answer
Option A
Detailed Explanation
In an inducible operon, genes are typically off and require an inducer to activate transcription.
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