Alkylation of polyguanylic acid at the 2-amino group and phosphate by the potent mutagen (+/-)-7beta,8alpha-dihydroxy-9beta,10beta-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene.

Alkylation of polyguanylic acid at the 2-amino group and phosphate by the potent mutagen (+/-)-7beta,8alpha-dihydroxy-9beta,10beta-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene.