I had to drop my subscription to Nature for financial reasons this year. You don't by chance have another site or paper? - Not at the moment, but as I spot stuff I'll put it in a post. The information in the DNA/RNA code is always present; there is no living organism without it. Just imagine: Inorganic matter somehow makes living organic matter with an information code. Have you ever seen a spontaneously appearing code? I knew that abstract would tickle your fancy, with your interest in mathematical aspects in biology.