Final answer:
MPF consists of two components, cyclin and cyclin-dependent kinase (cdk), which together regulate the cell cycle and initiate mitosis.
Step-by-step explanation:
The two components of Maturation Promoting Factor (MPF) are cyclin and cyclin-dependent kinase (cdk). MPF is crucial in the regulation of the cell cycle, as it triggers cells within the G₂ phase to enter mitosis. Cyclin is a regulatory protein whose levels fluctuate during the cell cycle, rising after cytokinesis, peaking at mitosis, and then falling. Cyclin-dependent kinase, however, has consistent levels throughout the cell cycle, but it requires the binding of cyclin to activate its kinase activity, which is essential for initiating mitosis.