Polyclonal antibodies. A mixture of immunoglobulin molecules secreted against a specific antigen, each recognizing a different epitope.
Polygenic. Controlled by or associated with more than one gene.
Polyclonal antibodies Antibodies that are the products of many different populations of antibodyproducing cells.
Polyketides A class of compounds, including the antibiotic erythromycin, formed by the action of specific megasynthases.
(See monoclonal antibodies, polyclonal antibodies.) Anticodon. A nucleotide base triplet in a transfer RNA molecule that pairs with a complementary base triplet, or codon, in a messenger RNA molecule. See Codon, Messenger RNA, RNA. Antigen.
Blood isolated from these animals contains polyclonal antibodies - multiple antibodies that bind to the same antigen - in the serum, which can now be called antiserum.
Polyclonal antibodies bind to many epitopes of a given antigen, while monoclonals bind to a single epitope. In the processing of antibodies, certain binding capabilities are degraded.
Differs from polyclonal antibodies, which are mixed populations of antibody molecules such as may be present in a serum specimen, within which many different individual antibodies have different binding specificities.
 See also: Cells, Antibody, Cell, Complement, Antigen
  
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