Monday, February 18, 2019

Basic components of the immune system part 113




DNA ANALYSIS

Known unique segments of nucleic acid sequences can be used as DNA probes to determine the presence of complementary sequences of DNA in a sample from a given patient. The probe, which is a single strand of a given DNA, is presented to the target DNA, which is composed of thousands of nucleotides. The complementary strands from target and probe DNA will anneal to each other, a process known as DNA hybridization. The high affinity of the probe for a complementary segment in the target DNA is the most specific intermolecular interaction between biological macromolecules.

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