Anorexia nervosa is characterized by the maintenance of unusually low body weight and

Anorexia nervosa is an eating disorder. It is characterized by restricted intake of energy food, to maintain low body weight than normal, an intense fear of gaining weight, loss of considerable amount of body weight in short span of time, and a disturbed view of the body as obese. No medicine is used to treat anorexia

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."