  Behavior of \rho_{ab}(T) and R_{H}(T) is presented for LSCO and YBCO single
crystals in the lightly hole-doped antiferromagnetic region, with an emphasis
on the R_{H}(T) data. In both systems, R_{H} is virtually constant at moderate
temperatures and tends to increase at low temperatures. Since essentially the
same behavior of \rho_{ab}(T) and R_{H}(T) is observed in both LSCO and YBCO,
we discuss that the in-plane charge transport properties are universal among
the cuprates in the lightly-doped regime and that the R_{H}(T) data we obtained
represent the genuine behavior of the Hall effect in this regime.
