- Chap. 16, p. 226: GOEnrichmentStudy() takes as first argument a list of gene IDs, not GO terms.

- Chap. 16, p. 224: Source Code 2.1 [code defining get_oboxml()] - QuickGO has deprecated the OBOXML API. This has been replaced with get_term() which retrieves JSON from the API instead - see updated exercises on main page for source code. (v1.0.2)