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I have been reading about the ubiquitous use of ATP as an energy source in biology. ATP Synthase is a very complicated protein enzyme. My question is, how could this protein have arisen. To form protein you need DNA, but to form DNA, you need protein enzymes? Can you help please?

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marked as duplicate by David, mgkrebbs, kmm, WYSIWYG Jan 19 at 10:37

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  • $\begingroup$ Welcome to SE Biology. This sort of question has been asked many times on the list. Fundamentally it is about the DNA/protein chicken/egg question, which is what I have cited in my close vote. The evolution of energy generating systems (GAPDH is a much simpler way of generating ATP, for example) is a valid — if broad — question, but isn't necessarily part of the DNA/protein thing. $\endgroup$ – David Jan 5 at 11:16