the size of the poly ( a ) sequences was estimated as 10-20 nucleotides in length by determination of the fraction resistant to pancreatic rnases plus t1 rnases , followed by analysis of electrophoretic mobility on polyacrylamide gels and of the amp-to-adenosine ratio after alkaline hydrolysis .
C0035541
pancreatic rnases
C0014241
rnases