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TLS Online TPP Program

#Id: 2452

In the absence of allolactose, the repressor is present in a form that binds its site on DNA (and so keeps the lac genes switched off ). 

#Unit 3. Fundamental Processes #Transcription elongation and termination #Part B Pointers
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TLS Online TPP Program

#Id: 7203

#Unit 5. Developmental Biology

Codominant Expression 
TLS Online TPP Program

#Id: 7204

#Unit 5. Developmental Biology
TLS Online TPP Program

#Id: 7205

#Unit 5. Developmental Biology
TLS Online TPP Program

#Id: 7206

#Unit 5. Developmental Biology

IFN- ¥ has been shown to induce expression of the class II transcriptional activator (CIITA). 
TLS Online TPP Program

#Id: 7207

#Unit 5. Developmental Biology

IL-4 increases expression of class II molecules in resting B cells, turning them into more efficient APCs.
TLS Online TPP Program

#Id: 7208

#Unit 5. Developmental Biology

Expression of class II molecules by B cells is down-regulated by IFN-¥.