During nucleotide formation addition of purines and pyrimidines on sugar residue occurs at Nitrogen position no.

TLS Online TPP Program

#Question id: 1189

#Unit 4. Cell Communication and Cell Signaling

Which of the following signaling pathway cannot be activated by cytokines?

TLS Online TPP Program

#Question id: 13038

#Unit 13. Methods in Biology

Please arrange the following steps about ELIZA (Enzyme-linked immunosorbent assay) in chronological order

i. incubate with antibody-enzyme complex that binds primary antibody

ii. coat surface with antigen, block unoccupied sites with nonspecific protein

iii. add substrate, formation of colored product indicates presence of specific antigen

iv. incubate with primary antibody against specific antigen

TLS Online TPP Program

#Question id: 18645

#Unit 13. Methods in Biology

SDS PAGE separate molecules by size because the presence of SDS (sodium dodecyl sulphate) denatures the protein removing 2˚, 3˚ and 4˚ structures (they assume a linear chain) and the SDS coats the molecules giving them a uniform charge/mass ratio. In an experiment (SDS-PAGE) with a discontinuous buffer system following band pattern is obtained 

   

Choose the correct statement regarding this band pattern

TLS Online TPP Program

#Question id: 475

#Unit 1. Molecules and their Interaction Relevant to Biology

In an anaerobic muscle preparation, lactate formed from glucose labeled in C-2 would be labeled in:

TLS Online TPP Program

#Question id: 18901

#Unit 13. Methods in Biology

Calcium-47 Important aid to biomedical researchers studying the