Cell SignalingCommon DescentDesignDevelopmentHomologyBiological SciencesDeep homology and design: why Notch?https://doi.org/10.59350/cs7g9-hcp10Published July 3, 2009 in Quintessence of DustAuthor Stephen MathesonExportCitationThe Notch signaling pathway is a golden oldie of genetics in two ways.