(D) Based on the results of cyclin and CDK-knockout studies, scientists have constructed a new threshold model of cell cycle control. Accordingly, either CDK1 or CDK2 bound to cyclin A is ...

Cytokinesis is a key event in the cell cycle requiring tight coordination of mitotic spindle ... activated in late mitosis by a number of upstream kinases such as Aurora-B, Cdk1, and Plk1 to establish ...