in the latter case , excess loading of amine on high gc content polymers produces a cd spectrum that is similar to one produced by poly ( da-dt ) in the `` '' x '' '' -form [ m. vorlickova , e. minyat , and j. kypr ( 1984 ) biopolymers 23 , 1-4 ] .
C0032521
polymers
C0005554
) biopolyme