Alpha-keratin Alpha-keratin Alpha-keratin, or α-keratin, is a type of keratin found in mammals. This protein is the primary component in hairs, horns, nails and the epidermis layer of the skin. α-keratin is a fibrous structural protein, meaning it is made up of amino acids that form a repeating secondary structure. The secondary structure of α-keratin is very similar to that of a traditional protein α-helix and forms a coiled coil. Due to its tightly wound structure, it can function as one of the strongest biological materials and has various uses in mammals, from predatory claws to hair for warmth. α-keratin is
Quality of Mercy (The Outer Limits) a corner and screams. Quality of Mercy (The Outer Limits) "Quality of Mercy" is an episode of "The Outer Limits" television show. It was first broadcast on 16 June 1995 during the rebooted series' first season. Major John Skokes is taken prisoner during an interstellar war and thrown into a dark cell, where he meets an imprisoned female cadet. After Skokes is thrown into the cell, he sees his fellow prisoner and, suspicious, questions her about her name, background, and unit. Her name is Bree Tristan, and she is a cadet. He spots a strange growth on her arm, and