Editing Chargaff's rules (section)

== Percentages of bases in DNA ==
The following table is a representative sample of Erwin Chargaff's 1952 data, listing the base composition of DNA from various organisms and support both of Chargaff's rules.<ref name="Bansal2003">{{cite journal |author=Bansal M |title=DNA structure: Revisiting the Watson-Crick double helix |journal=Current Science |volume=85 |issue=11 |pages=1556–1563 |year=2003 |url=http://eprints.iisc.ernet.in/7173/1/dna.pdf |access-date=2013-07-26 |archive-url=https://web.archive.org/web/20140726025011/http://eprints.iisc.ernet.in/7173/1/dna.pdf |archive-date=2014-07-26 |url-status=dead }}</ref> An organism such as φX174 with significant variation from A/T and G/C equal to one, is indicative of single stranded DNA.

{{alternating rows table|class=wikitable sortable}}
! scope=col|Organism!!scope=col|Taxon!!scope=col|%A !!scope=col|%G !!scope=col|%C !!scope=col|%T !!scope=col|A / T !!scope=col|G / C !!scope=col|%GC !!scope=col|%AT
|-
| [[Maize]] || ''[[Zea (plant)|Zea]]'' || 26.8 || 22.8 || 23.2 || 27.2 || 0.99 || 0.98 || 46.1 || 54.0
|-
| [[Octopus]] || ''[[Octopus]]'' || 33.2 || 17.6 || 17.6 || 31.6 || 1.05 || 1.00 || 35.2 || 64.8
|-
| [[Chicken]] || ''[[Gallus (genus)|Gallus]]'' || 28.0 || 22.0 || 21.6 || 28.4 || 0.99 || 1.02 || 43.7 || 56.4
|-
| [[Rat]] || ''[[Rattus]]'' || 28.6 || 21.4 || 20.5 || 28.4 || 1.01 || 1.00 || 42.9 || 57.0
|-
| [[Human]] || ''[[Homo]]'' || 29.3 || 20.7 || 20.0 || 30.0 || 0.98 || 1.04 || 40.7 || 59.3
|-
| [[Grasshopper]] || [[Orthoptera]] || 29.3 || 20.5 || 20.7 || 29.3 || 1.00 || 0.99 || 41.2 || 58.6
|-
| [[Sea urchin]] || [[Echinoidea]] || 32.8 || 17.7 || 17.3 || 32.1 || 1.02 || 1.02 || 35.0 || 64.9
|-
| [[Wheat]] || ''[[Triticum]]'' || 27.3 || 22.7 || 22.8 || 27.1 || 1.01 || 1.00 || 45.5 || 54.4
|-
| [[Yeast]] || ''[[Saccharomyces]]'' || 31.3 || 18.7 || 17.1 || 32.9 || 0.95 || 1.09 || 35.8 || 64.4
|-
| ''[[Escherichia coli|E. coli]]'' || ''[[Escherichia]]'' || 24.7 || 26.0 || 25.7 || 23.6 || 1.05 || 1.01 || 51.7 || 48.3
|-
| [[φX174]] || ''[[PhiX174]]'' || 24.0 || 23.3 || 21.5 || 31.2 || 0.77 || 1.08 || 44.8 || 55.2
|-
{{end}}