Figure 5From: On the origin of crossover interference: A chromosome oscillatory movement (COM) model Measurements of chiasma positions. Spermatocytes are photographed, following consecutive triple staining with Quinacrine Mustard, Orcein (top right) and C-staining (bottom right) and drawings then made from the projected pictures at approximately 7000 times enlargement. Measurements are made of the chiasma positions in relation to the centromeres (left). Revised from [25].Back to article page