free 23s rrna is resistant toward photoinduced chain breakage at doses of 253.7-nm radiation up to at least 2.3 x 10 ( 20 ) and is much less sensitive toward destabilization of secondary structure than ribosome-bound 23s rrna toward chain breakage , 50s ribosome-bound 5s rrna is resistant toward chain breakage at doses of 253.7-nm radiation up to at least 2.3 x 10 ( 20 ) quanta .
C0035704
ribosome
C0035701
ribosome