A single strand of nucleic acid tagged with a radioactive molecule is called?
Correct answer: D. Probe
- A. Vector
- B. Selectable marker
- C. Plasmid
- D. Probe
Explanation
Probes are single-stranded, radiolabelled molecules of nucleic acids with known sequence. The probes having sequence complementary to the gene to be identified are supplied. They bind with the particular gene segment. Radiation imaging identifies the location of that particular segment that binds with the probe. Probes are used as an identification tool in gene sequencing.
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Biotechnology in health care applies biological organisms, cells or enzymes to diagnose and treat disease. The subject includes recombinant DNA, genetically engineered insulin, vaccines, antibiotics, monoclonal antibodies, gene therapy and techniques such as polymerase chain reaction, while distinguishing therapeutic applications from agricultural and industrial biotechnology.
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