Chargaff's rules
From Biocrawler, the free encyclopedia.
Chargaff's rules state that double-stranded DNA from any cell of all organisms have a 1:1 ratio of pyrimidine and purine bases and more specifically that the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine. They were discovered by Austrian chemist Erwin Chargaff.
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