Original news saved on 8 March 2010, 21:55 GMT from Science Daily. More below:
Unselfish molecules may have helped give birth to the genetic material of life One of the biggest questions facing scientists today is how life began. Scientists have discovered that small molecules could have acted as "molecular midwives" in helping the building blocks of life's genetic material form long chains and may have assisted in selecting the base pairs of the DNA double helix.