There are different kinds of division depending on the type of cell involved (Erster 25). However, regardless of the type, all go through what are called checkpoints, events that check on and regulate the cell as it goes through the stages of the cell cycle (Erster 26). There are three main checkpoints: during the G1/S stage where DNA is prepared for replication as the cell grows (G1) and then the actual replication (S) (Erster 25-26), G2 where further growth and preparation for the chromosomes to separate occur (Erster 25-26), and then anaphase where the replicated DNA is separated and considered at that point a chromosome (Erster 17, 26). These processes are essential for the prevention of the formation of cancerous tumors which can occur if regulation stops (Erster 37).
Choice A) A is true. A spindle assembly checkpoint is …show more content…
As spoken about before, if checkpoints cease to work, then regulation of cell division will cease as well and that can be harmful for the organism, resulting in an accumulation of cells which can form a tumor (Erster 37). In the research field, the company Regen BioPharma Inc. submitted a patent in hopes of using a gene silencer to activate certain parts of the immune system to help kill cancer cells. They believe this can be a breakthrough in creating more checkpoint inhibitors that can help treat cancer patients, and if this were to really work, it would make a huge impact not only in the medical world, but for all of the people that live with cancer