[Further to John's earlier assertion that the alphabet came before DNA...]
Let me give you something real simple so that a child can understand it. DNA code is made up of ACGT. The A here is the first letter in the alphabet. It is the beginning and DNA is also the beginning of everthing that is living. C stands for Christians. It is the Christians that are here to deliver God's message to the world. G of course stands for God. It is God who is expressing Himself in the DNA and thus God is expressing Himself in Creation. The T of course expresses God and the head or in His leadership over man. There is a lot that can be said about this, but now is not the place. If you have a small t then of course you have the cross that Jesus gave Himself for us. If you have a small g you will see that God has expressed Himself in us. The small c of course represents our humility before God. If we have pride or ego or are puffed up before God, then it is not going to work according to God's plan and purpose. The small a of course shows how things start off small in the beginning and over time they become greater. A journey of 1000 steps begins with one step. A study of the Bible begins with one word and one passage at a time.