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Semantic Similarity in Biomedical Ontologies

Figure 1

Section of the GO graph showing the three aspects (molecular function, biological process, and cellular component) and some of their descendant terms.

The fact that GO is a DAG rather than a tree is illustrated by the term “transcription factor activity” which has two parents. An example of a part of relationship is also shown between the terms cell part and cell.

Figure 1

doi: https://doi.org/10.1371/journal.pcbi.1000443.g001