Negative control of the lac operon. 

No lactose; repression. The lacI gene produces repressor, which binds to the operator and blocks RNA polymerase from transcribing the lac genes.

TLS Online TPP Program

#Id: 10197

#Unit 6. System Physiology – Plant

iPRTP or iPRDP is converted to ZTP or ZDP respectively by cytochrome P450 monooxygenase (CYP735A) and converted to zeatin.

TLS Online TPP Program

#Id: 7542

#Unit 6. System Physiology – Plant

Auxin promotes the transcription of GA3ox and to repress the transcription of GA2ox

TLS Online TPP Program

#Id: 3283

#Unit 3. Fundamental Processes

In Escherichia coli MMR system, MutL, in turn, activates MutH, an enzyme that causes an incision or nick on one strand near the site of the mismatch.

TLS Online TPP Program

#Id: 7459

#Unit 5. Developmental Biology

The phosphoryl group is transferred,  From histidine residue of DhkC  aspartate of DhkC histidine in phospho-transfer intermediate RdeA aspartate of RR of RegA

TLS Online TPP Program

#Id: 109

#Unit 5. Developmental Biology

Cells can progress from totipotent to pluripotent to determined.