Assertion: dna's sequence | /r/CapableOf | rejoin the two ends
Facets:
value: in an autocatalytic reaction
type: TEMPORAL
Source sentences:
text: Cech showed that a noncoding sequence (intron) in the small subunit rRNA of protozoans, which had to be removed before the rRNA was functional, can excise itself from a much longer precursor RNA molecule and rejoin the two ends in an autocatalytic reaction.