Anti Bodies
The immunoglobulin fold is

a β-barrel composed of a three- and a four-stranded antiparallel β-sheet
both (a) and (b)
found six times in the IgG molecule
found only in IgG molecules

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Anti Bodies
Type A blood

can be used to donate to type AB individuals
contains type B antigens on the surface of red blood cells
can always be used to donate to an Rh+ individual
can be used to donate to type B individuals

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Anti Bodies
Monoclonal refers to

all the antibody molecules which are identical
a single clone of antibody-producing cells
All of these
the binding with same antigenic site with identical binding affinities

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Anti Bodies
Each IgA antibody molecule consists of

three polypeptide chain and has two antigen binding site
four polypeptide chain and has two antigen binding site
two polypeptide chain and has two antigen binding site
two polypeptide chain and has one antigen binding site

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