Researchers do not know exactly what causes prostate cancer. But they have found some risk factors and are trying to learn just how these factors cause prostate cells to become cancer. On a basic level, prostate cancer is caused by changes in the DNA of a normal prostate cell. DNA is the chemical in our cells that makes up our genes. Our genes control how our cells function.
Barn definition, a building for storing hay, grain, etc., and often for housing livestock. See more.
âAnother word for 'barn' in Old English was beretun, barley enclosure (from tun : 'enclosure,' 'house', or beretun (barton), also meaning a threshing floor. However, the common English name for a grain storage building now is granary. Apple barn or fruit barn â for the storage of fruit crops. 2  Bank barn â A multilevel building built into a banking so the upper floor is accessible to a wagon, sometimes accessed by a bridge or ramp. 3  Bridge barn or covered bridge barn â general terms for barns accessed by a bridge rather than a ramp.