sentences:  Yeast cells with knock-outs of certain IAP genes did not show problems associated with cell death, but showed defects in mitosis characterized by improper chromosome segregation or failed cytokinesis.Deletion of particular IAPs does not seem to have a profound effect on the cell-death pathway as there is a redundancy of function by the many IAPs that exist in a cell.They have been implicated, however, to play a role in maintaining an anti-apoptotic environment intracellularly.