This site is not maintained. Click here for the new website of Richard Dawkins.

Life's First Spark Re-Created in the Laboratory

Thanks to Shaden for the link.

http://www.wired.com/wiredscience/2009/05/ribonucleotides/

A fundamental but elusive step in the early evolution of life on Earth has been replicated in a laboratory.

Researchers synthesized the basic ingredients of RNA, a molecule from which the simplest self-replicating structures are made. Until now, they couldn’t explain how these ingredients might have formed.

“It’s like molecular choreography, where the molecules choreograph their own behavior,” said organic chemist John Sutherland of the University of Manchester, co-author of a study in Nature Wednesday.

RNA is now found in living cells, where it carries information between genes and protein-manufacturing cellular components. Scientists think RNA existed early in Earth’s history, providing a necessary intermediate platform between pre-biotic chemicals and DNA, its double-stranded, more-stable descendant.

Continue reading:
http://www.wired.com/wiredscience/2009/05/ribonucleotides/

Also see:
RNA world easier to make - Nature
Molecule of life emerges from laboratory slime - New Scientist
HOW RNA GOT STARTED - Science News
Found: the origin of life - The Independent
Chemist Shows How RNA Can Be the Starting Point for Life - NY Times

TAGGED: BIOLOGY, CHEMISTRY, EVOLUTION


RELATED CONTENT

Bonobo makes stone tools like early...

Hannah Krakauer - New Scientist Comments

Kanzi the bonobo is able to create and use stone tools

Scientists Discover Previously Unknown...

- - URMC Comments

Newer Imaging Technique Brings ‘Glymphatic System’ to Light

Grey parrots use reasoning where...

- - The Royal Society Comments

Research suggesting that grey parrots can reason about cause and effect from audio cues alone- a skill that monkeys and dogs lack- is presented in Proceedings of the Royal Society B today.

Why do organisms build tissues they...

- - Science Blog Comments

Why, after millions of years of evolution, do organisms build structures that seemingly serve no purpose?

New flat-faced human species possibly...

Charles Choi - CBS News Comments

Four decades ago, in 1972, the Koobi Fora Research Project discovered the enigmatic fossilized skull known as KNM-ER 1470 which ignited a now long-standing debate about how many different species of early Homos existed.

A New Species Discovered ... On Flickr

Adam Cole - NPR Comments

One day in May of 2011, Shaun Winterton was looking at pictures of bugs on the Internet when something unusual caught his eye. It was a close shot of a green lacewing — an insect he knew well — but on its wing was an unfamiliar network of black lines and a few flecks of blue.

MORE

Comments

Comment RSS Feed

Please sign in or register to comment