Figure 1.

Construction of a Pygram. A. Linear pygram of the DNA sequence TTCGTCACGTCACGTCATT. The direct strand representation is above the horizontal black line, while the reverse complementary strand is below this line. The x-axis corresponds to the N strand coordinate system and the y-axis to eMR size. Blue boxes located in front of the sequence indicate the eMR frequency. B. Logarithmic Pygram of the same DNA sequence where the y-axis scale is logarithmic.