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.
Varun Ghosh. Advertisements: Interferons increase expression of class I MHC molecules and thus promote recognition by cytotoxic T cells. They can activate NK cells that can kill virus-infected cells. They play an important role in the first line of defense against viral infections. Research work revealed that, these substances could prevent not only viral infections but also suppress the growth of cancers in some laboratory animals.