In this study, dilute solution properties of polyadenylic acid (polyA)
, G values for single strand break formation G(ssb), Arrhenius paramet
ers (25-45 degrees C), the kinetics of strand break in the absence and
presence of radical scavengers have been studied. OH radicals were pr
oduced from gamma radiolysis of water, which is supposed to be the mai
n primary radical causing single strand break formation.