Biological process

up regulation of mitotic metaphase/anaphase transition, up-regulation of mitotic metaphase/anaphase transition, upregulation of mitotic metaphase/anaphase transition

Any process that activates or increases the frequency, rate or extent of the cell cycle process in which a cell progresses from metaphase to anaphase during mitosis, triggered by the activation of the anaphase promoting complex by Cdc20/Sleepy homolog which results in the degradation of Securin.