  In the present contribution, the effect of pairing on nuclear transfer and
fusion reactions close to the Coulomb barrier is discussed. A Time-Dependent
Hartree-Fock + BCS (TDHF+BCS) microscopic theory has been developed to
incorporate pairing. One- and two-particle transfer probabilities can be
obtained showing the importance of pairing. The calculated transfer
probabilities are compared to the recent experimental results obtained for the
$^{96}$Zr+$^{40}$Ca. Reactions involving the $^{18}$O with lead isotopes are
also presented, that are also of current experimental interest. Finally, a
study of the fusion barrier height predicted with the TDHF+BCS theory is
compared to the experimental values for the $^{40,44,48}$Ca+$^{40}$Ca
reactions.
