analysis of the molecular weights of the subunits of the l-rrna in the protostomians and the protozoa suggests that the l-rrna contains one short stretch , prone to nucleolytic attack , dividing the rna chain into a molecularly conserved portion ( 0.65 to 0.72 x 10 ( 6 ) dalton ) and a variable portion ( 0.65 to 0.96 x 10 ( 6 ) dalton ) .
C0035701
rrna
C0035668
rna