Transfer RNA as a written molecular history of the life transition on earth

Transfer RNA as a written molecular history of the life transition on earth Zachary Burton, Ph.D., Professor Emeritus, Department of Biochemistry and Molecular Biology, Michigan State University, reports on tRNA (transfer RNA) as a written molecular history of the pre-life to life transition on Earth ~4 billion years ago. Friends, coders, gamers, puzzlers, historians, linguists, geneticists, lend me your brief attention. I come to report history recorded ~4 billion years ago during pre-life, inscribed and preserved in genetic code and tRNA sequence. The pre-life sequence of tRNA (transfer RNA) was recorded in the tRNA sequences of living organisms, preserving a historic record ~4 billion years after its initial composition. As such, tRNA sequences in living organisms record events that occurred before life began on Earth. By this measure, tRNA sequence is a molecular fossil of the pre-life to life transition, and tRNA sequences relate a simple story that is the core history of the pre-life to life transition.