The principle of commercially available ELISA test kits is based on
a. antigens diffusing through an agarose gel
b. oxidase activity of an enzyme
c. competitive binding of antigens to antibodies
d. antigens migrating through an electric field
C
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Answer the following statement true (T) or false (F)
Tim Smith, aged 16 years, was hit by a car while riding his motorcycle. At the hospital he showed only minor abrasions and no bone fractures. He was discharged later that day. In the morning he experienced severe abdominal pain and returned to the hospita
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