2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/188222The generic predictions of two-texture zero neutrino mass matrices in the flavor basis have been examined especially in relation to the degeneracies between mass matrices within a class and interesting constraints on the neutrino parameters have been obtained. It is shown that the knowledge of the octant of $θ_{23}$, the sign of $\cosδ$ and neutrino mass hierarchy can be used to lift these degeneracies.25 pages, 8 figures, final version with minor changes, published in Phys. Rev. DHigh Energy Physics - Phenomenologytext