TLS Online TPP Program

#Id: 4679

#Unit 13. Methods in Biology

Antigen can be detected or measured by a sandwich ELISA .In this technique, the antibody (rather than the antigen) is immobilized on a microtiter well. 

A sample containing antigen is added and allowed to react with the immobilized antibody. After the well is washed, a second enzyme- linked antibody specific for a different epitope on the antigen is added and allowed to react with the bound antigen

After any free second antibody is removed by washing, substrate is added, and the colored reaction product is measured.

TLS Online TPP Program

#Id: 7677

#Unit 1. Molecules and their Interaction Relevant to Biology

Clockwise rotation gives dihedral angles from 0º to 180º.

180º is the same as counter-clockwise rotation to -180º.

TLS Online TPP Program

#Id: 7099

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 9050

#Unit 4. Cell Communication and Cell Signaling

Member of family A of GPCRs -β-adrenergic receptors

Member of family B of GPCRs -glucagon receptor 

Member of family C of GPCRs -glutamate receptor

TLS Online TPP Program

#Id: 7784

#Unit 2. Cellular Organization

All proteins found in the nucleus, histones, transcription factors,  DNA & RNA polymerases are synthesized in the cytoplasm and imported into the nucleus through nuclear pore complexes.