Chemicals for use in the manufacture of probes, reagents and preparations for use in industry, science and medicine, chemical, biological, biochemical, microbiological, immunological, and diagnostic chemicals, probes, reagents and preparations for scientific and laboratory purposes, namely polynucleotides, proteins and polypepetides, nucleotide and peptide arrays, nucleic acid or DNA molecules on slides or membranes for comparing expression levels of two or more biological samples, biochemica...