Description: 435 chemistry: molecular biology and microbiology / 435 chemistry: molecular biology and microbiology/(41) micro-organism, tissue cell culture or enzyme using process to synthesize a desired chemical compound or composition (72) preparing compound containing saccharide radical (84) preparing nitrogen-containing saccharide (85) n-glycoside (89) nucleotide (91.1) polynucleotide (e.g., nucleic acid, oligonucleotide, etc.) (91.4) modification or preparation of a recombinant dna vector (91.42) involving deletion of a nucleotide or nucleotides from a vector
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