TLS Online TPP Program

#Id: 2728

#Unit 12. Applied Biology

Which one of the following can be used as a selection marker for developing transgenic plants?

green fluorescent protein

β-glucuronidase

β-galactosidase

hygromycin phosphotransferase

 

TLS Online TPP Program

#Id: 10514

#Unit 4. Cell Communication and Cell Signaling

In mammals

XIAP (inhibitor of apoptosis proteins) restrain both initiator and effector caspases

TLS Online TPP Program

#Id: 8324

#Unit 2. Cellular Organization

The rate of addition of monomers is given by

rate constant kon (M–1 sec–1 )

The rate of loss is given by koff (sec–1)

TLS Online TPP Program

#Id: 6855

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 6418

#Unit 2. Cellular Organization

The promoter of the araBAD operon from E. coli is activated in the presence of arabinose and the absence of glucose and directs expression of genes encoding enzymes required for arabinose metabolism. 

Unlike the cases of lac and gal genes, where a repressor and an activator work together, here two activators work together: AraC and CAP.