Zunaira salehabout 8 hours ago

Control of cell replication by telomeres and telomerase

. The cells’ chromosomes are capped by telomeres, which, in the absence of telomerase activity, shorten with each cell division until the cell stops replicating. Therefore, most cells of the body cannot replicate indefinitely. In cancer cells, telomerase is activated and telomere length is maintained so that the cells continue to replicate themselves uncontrollably.