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. 1980 Dec 11;8(23):5739–5751. doi: 10.1093/nar/8.23.5739

Different base per unit length ratios exist in single-stranded RNA and single-stranded DNA.

J Glass, G W Wertz
PMCID: PMC324338  PMID: 6162153

Abstract

A significant difference was found to exist in the number of bases per unit length of single-stranded RNA as compared to single-stranded DNA when single-stranded RNA or DNA molecules of known nucleotide sequence were measured by electron microscopy using a cytochrome spreading technique. Using this technique, single-stranded RNA was found to have 17.5% more bases per unit of length than single-stranded DNA. These ratios were verified using four different denaturing conditions for the RNA: 80% formamide, 80% formamide plus glyoxal, 80% formamide/4M urea and 80% formamide/4M urea plus glyoxal. Molecules ranging in size from 1541 to 5386 nucleotides were examined and the number of bases per unit length was found to vary inversely with micrometer was consistent when RNA and DNA molecules of the same length were compared.

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Selected References

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