Can you play sega dreamcast game on a sega genesis

The Genesis is a toploading cartridge console. There's no way you could even get the disc inside the game, let alone play it. And no, the Sega CD won't run the disk either. That's like trying to run a Wii game on a Nintendo 64. Companies don't predict what their next two systems will be like and then make an add-on for their current console to play them. Furthermore, the Genesis is fourth generation. The Dreamcast is sixth. The Genesis couldn't run such a game, even if you could get it in. It's far to advanced a technology.