Cell cycle control

Cell cycle control is the process that regulates how and when cells divide to grow and repair tissue. It involves a series of checkpoints that ensure everything is in order—DNA is undamaged, and the cell is ready to divide. Proteins called cyclins and enzymes called CDKs act as molecular switches to start or stop different phases of the cycle. If problems are detected, the process halts to allow repair or triggers cell death if damage is too severe. Proper control ensures healthy growth, while misregulation can lead to disorders like cancer.