Left: frequency distributions of loops of lengths 1–7 bases for the entire human genome

<p><b>Copyright information:</b></p><p>Taken from "Prevalence of quadruplexes in the human genome"</p><p>Nucleic Acids Research 2005;33(9):2908-2916.</p><p>Published online 24 May 2005</p><p>PMCID:PMC1140081.</p><p>© The Author 2005. Published by Oxford University Press. All rights reserved</p> Right: percentage excesses of loop 2 counts over the averages of loops 1 and 3 for the entire human genome