2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45288Talk given at Frontiers in Particle Physics Conference, Cargese. In this paper, I provide some motivation for supersymmetric grand unified theories, briefly explain an extension of the standard model based on them and present a calculation performed using certain properties of some SUSY GUTs to constrain the available parameter space.8 pages, LaTex with 3 encapsulated PostScript files, replaced version merely has uuencoded figures. SHEP 94/95-01High Energy Physics - PhenomenologySupersymmetric Grand Unified Theories And Yukawa Unificationtext