5 Medical research chemicals, namely, buffers, chemical reagents, fluorescent compounds, fluorescent-labeled compounds, nucleotides, nucleic acids, olingonucleotides all for use in medical diagnosis, testing of clinical samples, medical research, veterinary medical research, genotyping, detection of mutations and polymorphisms, the medical determination of the genetic basis of disease, the medical determination of the genetic basis of drug response and the medical analysis, characterization and identification of nucleic acids; microarrays and macroarrays consisting of nucleic acids and oligonucleotides applied to substrates and supports optionally also carrying chemical reagents, fluorescent compounds, fluorescent-labeled compounds all for use in medical diagnosis, medical testing of clinical samples, medical research, veterinary medical research, genotyping, detection of mutations and polymorphisms, the medical determination of the genetic basis of disease, the medical determination of the genetic basis of disease, the medical determination of genetic basis of drug response and the analysis, characterization and identification of nucleic acids