... *SIGH* ... Quoting fisher <foolio_j88 at yahoo.com>: > What's the difference between these two?? > > > -- Hiranya S. Roychowdhury, Ph.D. Coll. Asst. Professor, Molecular Biology, Dept. of Chemistry & Biochemistry Rm# 336, Chemistry Bldg.; MSC 3MLS New Mexico State University Las Cruces, NM 88003 ---