---
title: "Experiment Shows That DNA May Have Existed Before Life"
description: "Scientists assume the first life on Earth used RNA and that DNA developed later. But an experiment suggests both genetic molecules formed at the same time."
date: "2020-06-24"
modified: "2020-06-24"
authors:
  - name: "Dan Robitzski"
    link: "https://futurism.com/authors/danrobitzski"
url: "https://futurism.com/the-byte/dna-existed-before-life"
categories:
  - "Biology"
  - "DNA"
  - "Genetics"
  - "Health & Medicine"
  - "Science & Energy"
tags:
  - "biology"
  - "genetics"
  - "the digest"
---

# Experiment Shows That DNA May Have Existed Before Life

![Scientists assume the first life on Earth used RNA and that DNA developed later. But an experiment suggests both genetic molecules formed at the same time.](<https://futurism.com/wp-content/uploads/2020/06/dna-existed-before-life.jpg>)
*\<em\>Image: Images via Pixabay/Victor Tangermann\</em\>*

## Rewriting History

You probably think of genetic code as a blueprint for biological organisms — a map their bodies use to grow, live, and reproduce.

But according to mind-bending new UK research, [*Scientific American* reports](<https://www.scientificamerican.com./article/the-first-gene-on-earth-may-have-been-a-hybrid/>), the raw components of DNA may have existed for far longer than living organisms have — eventually sloshing around, in primordial conditions, into the earliest ancestor all known life.

## Setting The Scene

The basic idea, according to [research published](<https://www.nature.com/articles/d41586-020-01566-4>) in the journal *Nature* this month, is that the scientists used hydrogen cyanide to simulate what they believe were the early conditions on Earth that gave rise to life.

The conventional wisdom is that RNA did predate living organisms, but not DNA. But in this new research, the scientists found that under the right chemical conditions, both RNA and DNA could have "coexisted in strict pairings on our planet before life arose," according to *SciAm —* a provocative suggestion that both key genetic components of life actually existed before life did.

## Huge Claim

Not everyone's convinced. Multiple researchers told *SciAm* that the research could be right but that there are more realistic explanations for how genetics began.

"There are other, better hypotheses as to locations for the emergence of life and prebiotic molecules," Frances Westall, exobiology director at the French National Center for Scientific Research’s Center for Molecular Biophysics in Orléans, told *SciAm*.

**READ MORE:** [The First Gene on Earth May Have Been a Hybrid](<https://www.scientificamerican.com./article/the-first-gene-on-earth-may-have-been-a-hybrid/>) \[*Scientific American*\]

**More on evolutionary history:** *[Scientists Claim To Have Recreated Earth's First Life](<https://futurism.com/the-byte/scientists-claim-recreated-earths-first-life>)*

## Author
Dan Robitzki is a senior reporter for Futurism, where he likes to cover AI, tech ethics, and medicine. He spends his extra time fencing and streaming games from Los Angeles, California.

### Author social links  
[Twitter](<https://x.com/danrobitzski>)