Board Thread:Episode Discussion Board/@comment-112155-20151006204526/@comment-26235944-20151020051854

@Macabros Those are good questions, but sorry, I don't know the answers. I would like to know the same things. Even though Coulson was given the GH 325, and he acted like a junkie trying to find the alien city...it doesn't seem to have changed his DNA, because his arm was turning to stone, like a normal human, when he was exposed to the Terrigen.