James D. Watson et al, Cold Spring Harbor Laboratory: Concept 17: A gene is made of DNA (html, flash-video) (animoitu DNA:n historia) DNA from the Beginning. 2002-2011. Dolan DNA Learning Center, Cold Spring Harbor Laboratory. Viitattu 19.4.2011. (englanniksi)
James D. Watson et al, Cold Spring Harbor Laboratory: Concept 18: Bacteria and viruses have DNA too (html, flash-video) (animoitu DNA:n historia) DNA from the Beginning. 2002-2011. Dolan DNA Learning Center, Cold Spring Harbor Laboratory. Viitattu 19.4.2011. (englanniksi)
What is noncoding DNA?Genetics Home Reference. National Institutes of Health. Viitattu 12.6.2020. (englanniksi)
ncbi.nlm.nih.gov
N. H. Horowitz: One-gene-one-enzyme: Remembering biochemical genetics (pdf) (koko teksti, free full text) Protein Science. (1995) 4:1017–1019. Printed in the USA: Cambridge University Press. Viitattu 19.4.2011. [(englanniksi)
stanford.edu
plato.stanford.edu
Rheinberger, Hans-Jörg and Müller-Wille, Staffan: Gene, 2. The Gene in Classical Genetics (html) The Stanford Encyclopedia of Philosophy (Spring 2010 Edition), Edward N. Zalta (ed.). Viitattu 19.4.2011. (englanniksi)