Active PDE hydrolyzes cAMP, driving cAMP levels back to basal levels.

TLS Online TPP Program

#Id: 8044

#Unit 1. Molecules and their Interaction Relevant to Biology

The order of priority of some common functional groups in amino acids is

TLS Online TPP Program

#Id: 2160

#Unit 9. Diversity of Life Forms

They ingest and digest food (holozoic), hence they are heterotrophic. Higher forms show elaborate sensory and neuromotor systems. Majority of them are motile.

TLS Online TPP Program

#Id: 9925

#Unit 4. Cell Communication and Cell Signaling

Adenoviruses and cytomegalo virus use to reduce the surface expression of class I MHC molecules, 

Measles virus and HIV, reduce levels of class II MHC molecules on the surface, 

Vaccinia virus, secreting a protein that binds to the C4b complement component.

TLS Online TPP Program

#Id: 449

#Unit 2. Cellular Organization

H32-H42 tetramer accounts for the diameter of the octamer. It forms the shape of a horseshoe.

TLS Online TPP Program

#Id: 5887

#Unit 3. Fundamental Processes

Only when a correct base pair is formed are the 3’-OH of the primer and the a-phosphate of the incoming nucleoside triphosphate in the optimum position for catalysis to occur.