Board Thread:General Discussion/@comment-1255374-20150216052443/@comment-26066301-20150303010917

Then answer this: if stockman spilled human DNA in the vial of serpent DNA, what would he need human DNA for during that part of the episode "Vengeance is Mine"?

Also, it's never been stated in the show that Karai is half human. She is a mutant serpent.