Assertion: nucleotide | /r/CapableOf | sequence with removable 3blockers
Facets:
value: on dna arrays
type: LOCATION
Source sentences:
text: On 26 October 1990, Roger Tsien, Pepi Ross, Margaret Fahnestock and Allan J Johnston filed a patent describing stepwise ("base-by-base") sequencing with removable 3' blockers on DNA arrays (blots and single DNA molecules).