Bump keys are keys cut to a special design that will allow them to be used for picking pin-tumbler locks. Pin-tumbler locks are the world's most popular lock, and these include exterior door entry locks for homes. The process of gaining entry using a bump key is called âbumping,â and it can be very effective.
1 An oncogene may cause a cell to secrete growth factors even though it does not normally do so. 2  It will thereby induce its own uncontrolled proliferation (autocrine loop), and proliferation of neighboring cells. 3  It may also cause production of growth hormones in other parts of the body.
The cell cycle, including growth, DNA replication, mitosis and cell division are all highly regulated processes that are regulated by special genes within a cell. Mutations in these genes can result in a loss of regulation and may cause a larger number of these cells to grow.