| 435 / | HD | CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY |
| 41 | DF | MICRO-ORGANISM, TISSUE CELL CULTURE OR ENZYME USING PROCESS TO SYNTHESIZE A DESIRED CHEMICAL COMPOUND OR COMPOSITION {26} |
| 72 | DF | .~ Preparing compound containing saccharide radical {13} |
| 84 | DF | .~.~ Preparing nitrogen-containing saccharide {1} |
| 85 | DF | .~.~.~ N-glycoside {3} |
| 89 | DF | .~.~.~.~ Nucleotide {3} |
| 91.1 | DF | .~.~.~.~.~ Polynucleotide (e.g., nucleic acid, oligonucleotide, etc.) {4} |
| 91.3 | DF | .~.~.~.~.~.~ Polynucleotide contains only ribonucleotide monomers {2} |
| 91.32 | DF | .~.~.~.~.~.~.~ Prepared from virus, prokaryotic acid {1} |
| 91.33 | | .~.~.~.~.~.~.~.~ Involving virus |