Pick up a copy of the hunting regs when you buy your license. It's free and has the answers to all life's mysteries inside. The hunting related ones anyway. As far as I'm aware, there's no issue with taking a knife into the woods, even if it's attached to a gun. Mine was easy to unscrew though, and shot fine without it. Please don't plan on bayoneting a deer as a finishing move though, that's just plain silly and cruel. Just put a shot through the vitals on the first try instead, if it's still kicking just put a mercy shot through it's noggin for ####'s sake. A few hunters get injured or killed every year trying to get in close and stick a wounded animal with a knife or some other such nonsense.
Not a personal attack on you radmacks, I'm just generalizing as it seems like some people are getting 'ideas'.