Evolution of galaxy properties as a function of η_dyn defined in Eq. E.1. Top panels: Thin disc, bulge, and stellar halo mass evolution. Middle panels: Gas fractions, star formation rates within twice the half stellar mass radius, and the black hole growth. Bottom panels: Specific angular momentum and B/D. Vertical dotted lines correspond to the lookback time at which the major merger happens. Major mergers in BL galaxies, which appear to be BL at the time of the merger, seem to be less disruptive to the galaxy compared to BD galaxies.