Comparing Mitosis and Meiosis – Cell Division

Cell cycle refers to the process of division marked by cell growth, DNA replication, distribution of replicated chromosomes to daughter cells, followed by cell division that a cell undergoes proliferation. It consists of different phases, regulated by the cell cycle checkpoints. There are a group of enzymes and proteins that regulate and ensure the replication of DNA and cell division linking to the extracellular signals to control cell proliferation. Any defective DNA is immediately repaired, and, if unrepairable, it leads to programmed cell death (apoptosis). These proteins are, in turn, controlled by proto-oncogenes and oncogenes, whose mutation leads to cancer.