Figure 2

Average values for relative word frequencies in comparisons among D. melanogaster chromosomes. To draw panel A, the frequency of all words present in the X chromosome was establish in both the X and autosomes. The histograms show, in the y-axis, the values of the X/autosome ratio, once corrected for chromosome sizes. Values from k = 1 to k = 13 are depicted from left to right for each comparison. Panel B is similar, but the words were obtained from the 2L chromosomal arm.