6 Some specific proteins bind to the rrna to form RNP complex RNA Subunits Assembled L1 L2 L3 ribosomes △4 △ 12900 bases (120 bases (Total: 31) ● Q O 11540 bases Total: 21) ▲△△ △▲ △ 28s:58s 5S a(4800 bases-160 bases)(120 bases Total: 50) ●⊙0 ●o (1900bass) Total: 33)6、 Some specific proteins bind to the rRNA to form RNP complex