PG entrance exam CUET PG 2025 Mock Test Life Sciences Fundamental Processes Control of gene expression
The lac operon can be activated by the addition of allolactose, which binds to the lac repressor and causes a conformational change that prevents the repressor from binding to the operator. Upon the addition of allolactose, what will be the order of translation of the enzymes encoded by the operon?
1
LacZ, LacY, LacA
2
LacA, LacY, LacZ
3
Only LacZ will be translated
4
Only LacY will be translated