Intracellular checkpoint controls constitute a system of signal trans- tion pathways which protect cells from outside pressures and internal mistakes. In reaction to at least one of these assaults on the integrity of their genome, the activation of this system of checkpoint control pathways may result in diverse cellular responses, including cell cycle arrest, DNA repair, or removal of their cell from cell death (apoptosis) in the event the damage cannot be repaired.
Additionally, internal errors can happen during the exceptionally populated replication of the cellular genome and its supply into cells. Here, the arrangement of the cell cycle events have to be rigorously enforced–for instance, to make sure that DNA replication is c- plate and happens just once before cell division, or to track mitotic spindle assembly, and also to stop exit from mitosis before chromosome segregation was completed. Thus, well working checkpoint mechanisms are fundamental to the maintenance of genomic integrity and also the fundamental viability of cells and also the fore, are vital for proper growth and survival.
The significance of appropriate performance of checkpoints becomes obvious evident under conditions where this management system malfunctions and fails. Based on the seriousness and time, failure of the machinery may result in embryonic lethality, hereditary diseases, and even cancer.