  A mechanism of radiatively induced breaking of the conformal symmetry in the
Standard Model is suggested. The system of one scalar (Higgs) and one fermion
(top-quark) fields with Yukawa and $\phi^4$ interactions is considered. The
infrared instability of the Coleman-Weinberg effective potential for this
system leads to the appearance of a finite renormalization scale and thus to
breaking of the conformal symmetry. Finite condensates of both scalar and
spinor fields appear. It is shown that the top quark condensate can supersede
the tachyon mass of the Higgs field. The Higgs boson is treated as an
elementary scalar and the standard mechanism of electroweak symmetry breaking
remains unchanged. The difference from the Standard Model appears in the value
of the Higgs boson self-coupling constant.
