Fig.2 Purification of taq gene. (a) Gel electrophoresis of pTaq1 plasmid with or without the digest of restriction endonucleases EcoRI. Red boxes indicate DNA fragments containing the taq gene. (b) Gel electrophoresis of taq gene fragments extracted from EcoRl digest products. 1kb is the DNA molecular weight ladder. (c) taq gene concentration (ng/μl) and purity (260/280) were determined by spectrophotometry.