Presymptomatic testing A test for a single-gene disease in a healthy or apparently healthy person. If the test has high specificity and is performed reliably, a person with a positive test result will almost always manifest the disease. Proficiency testing The use of blind testing to assess whether clinical laboratories can perform a test correctly. Usually the samples are provided by an organization independent of the laboratories performing the test. Protein String of amino acids linked by peptide bonds.
Some proteins have more than one polypeptide chain.
Each chain is encoded by a different gene. Recombinant DNA techniques The ability to excise exact segments of DNA and insert them into DNA of other organisms, which can then replicate the segment millions of times. RNA Ribonucleic acid. Comprised of sequences of ribonucleotides. Each nucleotide contains either adenine, uridine, guanine, or cytosine.