Anti Bodies
Antigenic determinants bind to which portions of an antibody?

Only heavy chains
Variable regions
Only light chains
Constant regions

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Anti Bodies
A polyclonal antibody response

is produced only in response to polymeric antigens
violates clonal selection
is produced by several B cells recognizing different pitopes on the same antigen
occurs during the lag phase of the immune response

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Anti Bodies
Each IgA antibody molecule consists of

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
three polypeptide chain and has two antigen binding site

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Anti Bodies
Type A blood

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

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Anti Bodies
Monoclonal refers to

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

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Anti Bodies
IgE provides

secretions in the body
immunity against some parasites
All of these
complement killings of the cells and phagocytosis

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