Editing Experimentum crucis (section)

===DNA, experimentum crucis===
:''See [[Scientific method#Context|§Context for crucial experiment]] in the discovery of the [[Scientific method#Crucial experiment|§structure of DNA]], and [[List of experiments#Biology|§List of experiments in biology]]''
In [[DNA#History|the discovery of the significance of the structure of DNA]], the fact that DNA was a double helix enabled the discoverers, Francis Crick and James Watson, to suggest that one strand of the double helix could serve as the template for the second strand, as the second strand was being duplicated. This explained the ''secret of life'',<ref>{{cite book | last = Regis | first = Ed | name-list-style = vanc | date = 2009 | title = What Is Life?: investigating the nature of life in the age of synthetic biology | location = Oxford | publisher = [[Oxford University Press]] | isbn = 978-0-19-538341-6 | page = 52 }}</ref> how the structure of DNA could serve as the [[nanomotor|mechanism]] for the [[gene]] (the [[genetic code]]), in which four [[nucleotide]]s serve to encode the sequence of [[enzyme]]s needed [[enzyme catalysis|to catalyze]] the production of macromolecules in the cell, and which led to its application in [[synthetic biology]], in [[genetic engineering]], in [[forensics]], [[genetic testing]], [[genomics]] and [[pharmaceutical]]s, among other industries.