In S. cerevisiae, the successful onset of this process leads to the activation of Tem1 and maintenance of the MEN cascade. Degrons targeted by one protein complex directly before and during this process display either an ABBA, KEN box, or D box motif. Following binding to Cdh1, a complex named for promoting this process gains the ability to ubiquitinate B-type cyclins. (-5[1])That cyclosome can also be activated for this process by (*) Cdc20. This phase is initiated following the release of separase from securin by APC. Cleavage of cohesin rings and depolymerization of kinetochore microtubules during this phase cause sister chromatids to migrate to opposite poles of a dividing cell. For 10 points, name this shortest phase of mitosis that occurs between metaphase and telophase. ■END■ (10[1])