Distribution of the simulated and real AGN host galaxies after subtracting the best-fit model nucleus in concentration index C versus asymmetry A (left) and in Gini coefficient G versus M₂₀ (right). Tiny open symbols depict ambiguous cases, large open symbols show undisturbed galaxies, large filled symbols are classified as major mergers. Major mergers and undisturbed galaxies are better separated than before subtracting the nuclei (Fig. 10).