FIGURE 2.

Description of advanced biofuels using biological process terms in the Gene Ontology graph. The GO has three ontologies, Molecular Function, Biological Process and Cellular Component, which are made up of terms (otherwise known as classes) arranged in the form of a graph. Each graph consists of a set of more specific subclasses (child) terms that form relationships (in this case “is_a”) with more general (parent) terms. As an example, biosynthesis terms for fuel and fuel-like products boxed in red are subclasses of the more general terms boxed in black.