Board Thread:Warhammer 40k General Discussion/@comment-25073042-20140731063418

This is something, that I've been thinking about lately:

I've read a few times about Chaos legions stealing gene-seed from the loyalists. I've also read that the original gene-seed of most Chaos legions is too corrrupted to create new marines. I therefore assume that they then create new recruits from what they steal? If so, how is it possible, that the new recruits have the same traits as the original traitor marines?

For example, if the Alpha Legion steals Raven Guard gene-seed and create new marines from it, they will end up with Raven Guard marines. Corrupted Raven Guard, but still not Alpha Legion. So how come the traitor legions still have new recruits? How does a person become a new Alpha Legionnaire, Night Lord etc.?

Thanks in advance for your replies 