The single-gene mutations directly responsible for early-onset Alzheimer's disease do not seem to be involved in late-onset Alzheimer's, and researchers have not found a specific gene that causes the late-onset form of the disease.
The NFLâs worst defense in 2015 are expected to be the Atlanta Falcons, Jacksonville Jaguars, Tennessee Titans, Chicago Bears and Tampa Bay Buccaneers (not necessarily in that order).
Also known as the Oklahoma defense, it is structurally very similar to the 3-4. In the 50 defense, the team uses a nose tackle, two defensive tackles lined up over or slightly inside the offensive tackles, and two defensive ends lined up over or outside the tight end.