Calculate the heat of formation of benzene from the following data, assuming no resonance. Bond energies :

C – C = 83 kcal = 140 kcal C – H = 99 kcal

Heat of atomisation of C = 170 .9 kcal

Heat of atomisation of H = 52.1 kcal

TLS Online TPP Program

#Question id: 1544

#XL - S Microbiology

function equivalent of MASP-2

TLS Online TPP Program

#Question id: 1545

#XL - S Microbiology

B cells negatively regulated by,

TLS Online TPP Program

#Question id: 1547

#XL - S Microbiology

follicular dendritic cells (FDCs) secrete CXCL13 and its receptor, CXCR5, which is expressed on B cells, function of this interaction ?

TLS Online TPP Program

#Question id: 1548

#XL - S Microbiology

B-cell survival in the follicle is dependent on?

TLS Online TPP Program

#Question id: 1549

#XL - S Microbiology

the decision to translate  IgM versus IgD  heavy chains is made at the level of?

TLS Online TPP Program

#Question id: 1550

#XL - S Microbiology

IL-4 responsible for class switch recombination (CSR) into,