Question
Which one of the following acts as an inducer for lac operon?
Sucrose
Lactose
Glucose
Galactose
lactose acts as the substrate for the enzyme beta-galactosidase and regulates the switching on and off of the operon. Hence, it is specifically termed as the inducer. The text also explicitly notes that glucose or galactose cannot act as inducers for the lac operon.
This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Molecular Basis of Inheritance. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.
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