Biology Direct

official impact factor 3.74

Open Access Highly Access Email this article to a friend

A four-column theory for the origin of the genetic code: tracing the evolutionary pathways that gave rise to an optimized code

Paul G Higgs

Biology Direct 2009, 4:16 doi:10.1186/1745-6150-4-16

Fields marked * are required


Multiple email addresses should be separated with commas or semicolons.