DNA Markers – The Genetic Signposts Revolutionizing Biology
HOOK
DNA markers are the genetic signposts that guide modern biology—from plant breeding to forensic science.
HISTORY / ORIGIN
In 1985, Sir Alec Jeffreys developed the variable-number tandem repeat method, giving researchers the first DNA fingerprints. The main breakthrough came with the invention of PCR, enabling any genomic region to be amplified and analyzed. Early efforts focused on restriction fragment length polymorphisms (RFLPs).
