| 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} |
| 91.4 | DF | .~.~.~.~.~.~ Modification or preparation of a recombinant DNA vector {2} |
| 91.42 | ![]() | .~.~.~.~.~.~.~ Involving deletion of a nucleotide or nucleotides from a vector |