these mrnas had apparent molecular weights of 450 000 +/- 30 000 and 320 000 +/- 25 000 and contained poly ( adenylic acid ) sequences at their 3 ' termini ranging from 15 to 150 residues with number average lengths of 42 and 38 adenosines , respectively .
C0001465
adenylic acid
C0001443
adenosines