Diagnostic preparations for medical and veterinary medical purposes; diagnostic preparations for medical and veterinary medical purposes, namely, nucleic acids, enzymes, polymerases, reagents for staining or marking, molecular probes, buffer, aqueous and non-aqueous solutions of alcohols and salts, distilled or purified water, silica, magnetic particles, and materials for columns; kits comprising diagnostic preparations, chemical, biochemical and biotechnological preparations and reagents for medical and veterinary medical purposes for use in sample preparation, purification, lysis, modification and manipulation of cells, for the performance of marking, separation, isolation, purification, amplification and analytical methods for biopolymers, namely, nucleic acids, enzymes, proteins, macro molecules and biologically active substances, and specifically excluding pharmaceutical preparations for diagnosis to identify human patient populations appropriate for administration of preventatives or therapeutics and to monitor response thereto, and for prevention or treatment of human diseases or human health-related conditions