If the energy of electron in H atom is given by expression, − 1312/n² kJ mol^-1, then the energy required to excite the electron from ground state to second orbit is

TLS Online TPP Program

#Question id: 1740

#XL - Q Biochemistry

Activation of resting B-cells by T-helper cells depends directly upon costimulatory interaction between:

TLS Online TPP Program

#Question id: 1741

#XL - Q Biochemistry

B-cells as distinct from T-cells:

TLS Online TPP Program

#Question id: 1742

#XL - Q Biochemistry

The T-cell receptor link to MHC–peptide is enhanced by interaction between MHC class II on the antigen-presenting cells with the following molecule on the T-cell:

TLS Online TPP Program

#Question id: 1743

#XL - Q Biochemistry

The main costimulatory signal for activation of resting T-cells is provided by ligation of:

TLS Online TPP Program

#Question id: 1744

#XL - Q Biochemistry

Which of the following events occurs earliest in T-cell signaling?

TLS Online TPP Program

#Question id: 1745

#XL - Q Biochemistry

On injection into mice, bovine serum albumin conjugated with dinitrophenol (DNP) behaves as a: