  Fibonacci system with both diagonal and off-diagonal disorder is mapped to a
model with dimer type 'defects'. The model exhibit resonance transition
corresponding to zero reflectance condition resulting in extended states in the
system. These Bloch-type states reside on the line of inversion symetry of the
energy spectrum and include states at the band crossings. The resonant states
at the band crossings are related to the harmonics of the sine wave and have
transmission coefficient equal to unity in quasiperiodic limit. This is in
contrast to other resonant states where the transmission coeffiecient
oscillates. An exact renormalization scheme confirms the fact that all resonant
states are Bloch type waves as they are described by trivial attractors of the
renormalization flow.
