  In a recent paper, we pointed out that mixing of the light neutrinos with
heavy gauge singlet states could reconcile the Z-pole data from e+e- colliders
and the nu_mu (anti-nu_mu) scattering data from the NuTeV experiment at
Fermilab. We further noted that the mixing angle required to fit the data is
much larger than what would be expected from the conventional seesaw mechanism.
In this paper, we show how such mixings can be arranged by a judicious choice
of the neutrino mass texture. We also argue that by invoking the unification of
the Dirac mass matrix for the up-type quarks and the neutrinos, the mass of the
heavy states can naturally be expected to be in the few TeV range. The model is
strongly constrained by the lepton flavor changing process mu -> e gamma which
requires lepton universality to be violated in the charged channel.
