Anti Bodies
The immunoglobulin fold is

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

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Anti Bodies
A polyclonal antibody response

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

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Anti Bodies
Type A blood

can be used to donate to type B individuals
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

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Anti Bodies
The main function of antibodies is to

kill all the foreign bodies
chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease
protect the circulatory system
generate antigens, thus conferring immunization

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