Understanding Digital Slr Lenses Navigating The Menus I Have A Minolta 7000 Which Uses Sigma AF Lenses, Will These Fit A Sony Digital SLR?

I have a Minolta 7000 which uses Sigma AF lenses, will these fit a Sony digital SLR? - understanding digital slr lenses navigating the menus

I know that Sony has over Minolta and understand that the Minolta AF lenses work in manual mode, but Sigma AF either work in manual or AF mode?