However, modern low flush toilet designs allow the use of much less water per flush. Dual flush toilets allow the user to select between a flush for urine or feces, saving a significant amount of water over conventional units. The flush handle on these toilets is pushed up for one kind of flush and down for the other.
Monoclonal antibodies (mAb or moAb) are monospecific antibodies that are made by identical immune cells that are all clones of a unique parent cell, in contrast to polyclonal antibodies which are made from several different immune cells.onoclonal antibodies are typically made by fusing myeloma cells with the spleen cells from a mouse that has been immunized with the desired antigen. However, recent advances have allowed the use of rabbit B-cells to form a rabbit hybridoma.
The three groups of heterophile antibodies are polyspecific antibodies, antiimmunoglobulin antibodies, and high-specificity high-affinity antibodies against antigens from animal species. In clinical practice, the most important significance of heterophile antibodies is their use in diagnosing infectious mononucleosis.