Figure 1.

Electropherograms of microdissected RNA samples. Beside the marker (left peak) the 18 and 28S peaks are visible. For all samples the 28S is higher than the 18S peak, indicating good quality RNA. A, T1, ratio 28S/18S = 1.9; B, T2, ratio 28S/18S = 1.9; C, B, ratio 28S/18S = 1.8.