The normal function of one tumor suppressor gene is to prevent cells with damaged chromosomes and DNA from "progressing from G1 to S," whereas another tumor suppressor gene prevents "passage from G2 to M." When tumor suppressor genes fail to work, cancer can result. A cell that is prevented from "passing from G2 to M" will .

A cell that is prevented from passing from G2 to M will Undergo apoptosis. The apoptotic machinery will be activated to clear off cells that are damaged and thus cannot proceed in the cell cycle

This prevents damaged cells from undergoing cell division and form mutated cells. These normal process is altered by cancerous cells

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.