High AFFINITY ANTIBODY - Antibodies with a high affinity for antigen. HAPTEN - A low molecular weight substance that alone can react with its corresponding antibody. They help improve both aerobic and organic amino acids supplier anaerobic performance by decreasing the production of lactate, a substance the body creates in response to strenuous train. GENETIC ENGINEERING - A technique used to change the genetic info in a living cell, reprogramming it for a desired purpose (such as the manufacturing of a substance it wouldn't naturally produce).