Fig 1: Standard DNA samples chosen for qPCR analysis. Electrophoretic analysis of human male genomic DNA samples from Jurkat cells, (SD1111 Thermo Scientific, Waltham, MA, USA) (standard DNA) sonicated and not. (A) Electrophoretic run of samples in 1.4% agarose gel: lane 1-1 kb Sigma Aldrich DNA ladder; lane 2—control DNA; lanes 3-13—DNA sonicated at increasing times; lane 14—10 bp Invitrogen DNA ladder; lines with asterisks (2, 9, 11, and 13) correspond to the samples chosen for qPCR analysis. (B) distribution of fragments and average size in base pairs of the selected samples (Ctr, DNA256, DNA996, and DNA1508).