And you go with the understanding he hasn't.
Yes my little postulate has God with his own DNA. If you know for a fact He hasn't DNA then show me. Whether He has DNA, made a new batch or not, something apparently is going on inside the womb of a virgin. As far as I know, parthenogenesis aside, genetic material from both parents are involved in baby making. God is a parent in this case. He's not acting as a creator but a parent, the male, knocking up his chosen. Why He didn't just make a full grown adult out of whatever was laying around or made one out of thin air is subject to speculation.