21. In this last case, the monovalent " B . fasciatus " antivenom is also moderately effective. 22. Unless the macromolecule is cyclic, it will have monovalent structural units at each end of the polymer chain. 23. Unlike the tandem G-U motif, the A-A platform motif binds preferentially to monovalent cations. 24. SNAs should also not be confused with their monovalent analogues individual particles coupled to a single DNA strand. 25. This generates two separate monovalent ( containing a single antibody binding site ) Fab fragments and an intact Fc fragment. 26. Three vaccines currently exist, which include a polyvalent vaccine, a monovalent vaccine, and a monovalent inactivated vaccine. 27. Three vaccines currently exist, which include a polyvalent vaccine, a monovalent vaccine, and a monovalent inactivated vaccine. 28. The potassium and rubidium salts of the monovalent "'hydrogenperoxocarbonate "'anion have also been obtained. 29. As a result, a monovalent antivenom serum is being developed by the Razi Vaccine and Serum Research Institute in Iran. 30. A special instance of this equation is for the case of 25 ^ \ circ C water with a monovalent salt.