3.Higuchi, R., B. Krummel and R.K. Saiki. 1988. A general method of in vitro preparation and specific mutagenesis of DNA fragments: study of protein and DNA interactions. Nucleic Acids Res. 16:7351-7367. 4.Sarkar, G. and S.S. Sommer. 1990. The “megaprimer” method of site-directed mutagenesis. BioTechniques 8:404-407. 5.Smith, M. 1985. In vitro mutagenesis. Annu. Rev. Genet. 19:423-462. 6.Upende...