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In which condition, the level of intracellular cAMP rises, CRP-cAMP complex is formed that stimulates transcription of the lac operon by using lactose as an alternative carbon source ?

( A ) when glucose is present
( B ) none
( C ) when glucose is absent
( D ) when IPTG is present

2 Answers

C becos it acts as source
answered Mar 31, 2016 by thakurnavdeep2
Ans: ( C ) when glucose is absent
answered Nov 22, 2016 by suganyadevi.p