Let R be a prime ring with extended centroid C and with right Martindale quotient ring Q. Suppose that G is a nonzero generalized derivation of R and n is a positive integer. In the thesis we investigate the finite-dimensionality for C-subspaces spanned by Gn(I), Gn(L), S and G(ρ), where I is a nonzero ideal of R, L a noncentral Lie ideal of R, ρ a nonzero right ideal of R and S := { [x,δ(x)] | x ∈ ρ}. The finiteness properties are also investigated.