A study into Ribonucleic Acid (RNA) precursors shows how a combination of sugars and amino acids offer a possible explanation on the origins of life.
The study - “A Route to Enantiopure RNA Precursors from Nearly Racemic Starting Materials” - indicates that the precursors to RNA may have existed on Earth, before life existed.
The research team generated amino acids into naturally occurring sugars to attain their results.
Read more at University of California, Merced