Tryptophan (Trp) Operon

Trp Operon Structure

Many protein-coding genes in bacteria are clustered together in operons which serve as transcriptional units that are coordinately regulated. It was Jacob and Monod in 1961 who proposed the operon … Read more

Pulsed Field Gel Electrophoresis (PFGE)

The Method of Pulsed Field Gel Electrophoresis (PFGE)

Pulsed Field Gel Electrophoresis (PFGE) is a technique used for the separation of large deoxyribonucleic acid (DNA) molecules by applying to a gel matrix an electric field that periodically changes … Read more