Eye relief for an optical device is simply the distance from the ocular lens of the optical device to your eye. While eye relief is not a big thing with binoculars, it is with scopes due to the recoil characteristics of most firearms. A large caliber firearm will generate more recoil. Greater recoil means that the scope on a rifle (or shotgun), the greater the distance that the scope moves rearward with the rifle under recoil.
Antibodies are major components of humoral immunity. IgG is the main type of antibody found in blood and extracellular fluid allowing it to control infection of body tissues. By binding many kinds of pathogens such as viruses, bacteria, and fungi, IgG protects the body from infection.
A general representation of the method used to produce monoclonal antibodies. Monoclonal antibodies (mAb or moAb) are antibodies that are made by identical immune cells that are all clones of a unique parent cell. Monoclonal antibodies can have monovalent affinity, in that they bind to the same epitope (the part of an antigen that is recognized by the antibody). In contrast, polyclonal antibodies bind to multiple epitopes and are usually made by several different plasma cell (antibody secreting immune cell) lineages.