The phrase "a specific segment of DNA" is correct and usable in written English.
It can be used when discussing genetics, molecular biology, or any context where you need to refer to a particular part of a DNA molecule.
Example: "Researchers identified a specific segment of DNA that is responsible for the hereditary trait in the study."
Alternatives: "a particular section of DNA" or "a distinct portion of DNA."
Polymerase chain reaction, (PCR), a technique used to make numerous copies of a specific segment of DNA quickly and accurately.
Using a biochemical technology called polymerase chain reaction (hence PCR), the machines are used to identify a specific segment of DNA and make multiple copies of it.
Sangamo scientists have engineered a library of 10,000 fingers by tinkering with the variable region, designing it so that it will seek out, recognize and bind to a specific segment of DNA for a specific gene.
In the nucleus, active transcription factors recognize a specific segment of DNA, termed a promotor.
Polymerase chain reaction (PCR) is widely used for analysis of a specific segment of DNA, or a DNA variation.
In 1994, M. leprae DNA was successfully isolated from ancient human bone samples over 1000 years old and PCR assay confirmed the presence of an M. leprae specific segment of DNA sequence (RLEP) [16].
Nearly everything in corporate marketing today is about brand name identification and appealing to a specific segment of the public.
PCR allows us to amplify and identify specific segments of DNA by a simple chemical reaction within a few hours.
As a very short primer, CRISPR-associated proteins (in this instance, specifically proteins known as Cas1 and Cas2) act as a DNA version of a computer's Ctrl-X tool, allowing scientists to pinpoint specific segments of DNA, cut them out, fiddle with them and even replace them altogether.
Once a protein encounters and binds a segment of DNA, be it a specific sequence and/or a preferred structure, the resulting protein DNA complex becomes a distinct entity.
