From vancyuk at hotmail.com Tue Nov 15 11:51:40 2005 From: vancyuk at hotmail.com (Nancy) Date: Tue Nov 15 13:38:12 2005 Subject: [Bio-srs] Sequence comparison Message-ID: <1132073500.778468.30850@g49g2000cwa.googlegroups.com> Hi my name is Nancy and i am studying bioinformatics. I am quite confused about a topic and was hoping that you could help me. I was wondering if you could explain to me the principals behind Dayhoffs Pam250 and Henikoff's Blosum62. How are the created and what is the point of them please.Also how are they used. Thank you for your time