ADAMESQ

Hello BA Forum: Just a quick question - I'm going from the US to Asia via London and have one of those lovely LHR-LGW connections. If I check my bag in at DFW, will I have to pick it up at LHR and take it w/ me to LGW or does BA handle it behind the scenes. I'm guessing it's the former, but just wanted to be sure.

Thanks!