A: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3') B: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3') C: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3') D: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3') E: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3') F: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3') G: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3') H: DNA (5'-D(*AP*AP*CP*CP*CP*C)-3')