Hoi Tom, Net gezien dat bioinformatics wel met zo'n nummering systeem werkt, rest niet! Yves -- Yves Van de Peer, PhD. Professor in Bioinformatics and Genome Biology Group Leader Bioinformatics and Evolutionary Genomics VIB Department of Plant Systems Biology, UGent Ghent University Technologiepark 927 B-9052 Ghent Belgium Phone: +32 (0)9 331 3807 Cell Phone: +32 (0)476 560 091 Fax: +32 (0)9 331 3809 email: yves.vandepeer@psb.ugent.be http://bioinformatics.psb.ugent.be/