Cell Biology EducationVol. 2, No. 3 FEATURESFree AccessWaiting for 4.1Karen BerndKaren BerndSearch for more papers by this authorPublished Online:13 Oct 2017https://doi.org/10.1187/cbe.03-03-0011AboutSectionsView articleView Full TextView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail View articleFiguresReferencesRelatedDetailsCited by Vol. 2, No. 3 September 01, 2003133-194 Metrics Downloads & Citations Downloads: 50 History Submitted: 30 June 2003 Revised: 11 July 2003 Accepted: 11 July 2003 Information© 2003 by The American Society for Cell BiologyPDF download