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Which of the following is a polysaccharide vaccine of TI-2 antigen?

Correct Answer: Pneumovax 
TI-2 antigens enhance the robust and long-lasting primary antibody responses but they cannot recall response i.e., secondary immunization. Polysaccharide vaccines like Pneumovax and Menomune confer long term humoral protection in adult humans. These are the vaccines in response to TI-2 antigen. These antigens stimulate extrafollicular foci of plasma cell production and short-lived abortive TI germinal centres. 

Subunit, recombinant, polysaccharide and conjugate vaccine is which type of vaccine?

When all the monosaccharides in a polysaccharide are same type, such type of a polysaccharide is called a ___________

__________ pulps are of especially high opacity. Fillers tend to have high indices of refraction and provide interfaces for light scattering as well. The very high index of refraction of Ti2 allows thin papers to have high opacity as in the case of bible papers.

If the concentration of Ti2+ is changed from 1.0 M to 0.1 M in the galvanic cells above, what will happen to the observed cell voltages in galvanic cells 2 and 3?

Which of the following is not a feature of secondary immune respone to an antigen when compared to the first immune response to the same antigen?

Which one of the combinations of the following statements is true about antibody structure?
P. Limited proteolysis of rabbit IgG with the enzyme pepsin generates two antigen-binding regions (Fab) and an Fc fragment.
Q. Limited proteolysis of rabbit IgG with the enzyme papain generates a single bivalent antigen-binding region F(ab')2 and peptide fragments.
R. The Fc fragment of IgG can self-associate and crystallize into a lattice.
S. The F(ab')2 fragment of IgG is composed of both light and heavy chains.

The first recombinant vaccine produced targeted the surface antigen of which of the following virus?

The antigen receptors present on the B cells recognize the entire antigen.

A B cell activates by its first encounter with an antigen called _______ antigen.

Clonal Selection Law states that membrane-bound antigen receptors of B as well as T cells are generated in an antigen-independent genetic process.