Kim Henrick wrote:
A standard amino acid is a gene product with a specific t-RNA.
Isn't it arguable that Met-tRNA is no more specific for S-Met than for Se-Met, it's just a matter of what the organism has been eating?
Cheers, Charlie -- Charlie Bond Professorial Fellow University of Western Australia School of Biomedical, Biomolecular and Chemical Sciences M310 35 Stirling Highway Crawley WA 6009 Australia [EMAIL PROTECTED] +61 8 6488 4406
