1 Chemical, biochemical and biotechnological products for industrial and scientific purposes, namely, diagnostic preparations except for human or veterinary medical purposes, non-medical chemical and biochemical reagents, enzymes for industrial and scientific purposes and buffer solutions in the nature of chemicals for scientific and/or medical research use for marking, separating, isolating, purifying, amplifying, cloning, sequencing and/or for the analysis of biopolymers, in particular nucleic acids, chemical and biochemical reagents, enzymes for industrial and scientific purposes, and buffer solutions in the nature of chemicals for nucleic acid amplification and cloning; kits comprising chemicals for industrial and scientific purposes, namely, chemicals for marking, separating, isolating, purifying, amplifying, cloning, sequencing and/or for the analysis of biopolymers, in particular nucleic acids, chemical and biochemical reagents, enzymes for industrial and scientific purposes and buffer solutions in the nature of chemicals for nucleic acid amplification and cloning