Genetic Changes. Mutations in the ATM gene cause ataxia-telangiectasia. The ATM gene provides instructions for making a protein that helps control cell division and is involved in DNA repair. This protein plays an important role in the normal development and activity of several body systems, including the nervous system and immune system.
The Best OTF Knife â Blade Types. OTF knives give you added access to your blade, when you need it most. This type of knife uses a assisted opening mechanism to fire the blade up and out the front of the knife handle. OTF knives come in a variety of blade configurations.
Electronic Viewfinders (EVFs) An EVF is basically a very small screen inside a viewfinder, so you can put your eye up to the viewfinder and use it like a traditional camera. On most cameras with EVFs you can switch the view between the viewfinder and the rear LCD screen interchangeably.