In living organisms today, complex molecules like RNA and DNA are constructed with the help of enzymes. So how did these molecules form before life (and enzymes) existed? Why did some molecules ...

Where did RNA come from? Origin-of-life scientists from Scripps Research reveal how the sugar ribose may have been selected as one of life’s building blocks. Peer-Reviewed Publication Scripps ...

Where did RNA come from? (IMAGE) Scripps Research Institute Caption The sugar ribose is more quickly phosphorylated compared to other sugars with the same chemical formula but a different shape.