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.
In the late stages of cancer, cells break through normal tissue boundaries and metastasize (spread) to new sites in the body. In normal cells, hundreds of genes intricately control the process of cell division.Normal growth requires a balance between the activity of those genes that promote cell proliferation and those that suppress it. It also relies on the activities of genes that signal when damaged cells should undergo apoptosis.or example, many cancer cells carry two mutant copies of the gene that codes for p53, a multifunctional protein that normally senses DNA damage and acts as a transcription factor for checkpoint control genes. Gene mutations accumulate over time as a result of independent events.