cDNA genes are a locus (or region) of DNA for functional transcript RNA or protein. An ELISA is used to detect the expressed protein in biological fluids, serum, saliva.
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Rats are used to make rat monoclonal anti mouse antibodies. There are less rat- than mouse clones however. Rats genes from rodents of the genus Rattus norvegicus are often studied in vivo as a model of human genes in Sprague-Dawley or Wistar rats.
