US PATENT SUBCLASS 435 / FOR 164
.~.~ Transcription (935/39)

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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

FOR 158  DD  METHODS OF ENHANCING OR DIMINISHING EXPRESSION (935/33) {4}
FOR 163  DD  .~ Prokaryotic cell (935/38) {3}
FOR 164.~.~ Transcription (935/39) {1}
FOR 165  DD  .~.~.~> Operon selection (935/40) {1}