DNA is fundamental to the biology of all life on Earth, but how many of us actually know what it is or what it's made of?

The DNA of some viruses doesn’t use the same four nucleotide bases found in all other life. New work shows how this exception is possible and hints that it could be more common than we think. All life ...

New Nucleotide In DNA Could Revolutionize Epigenetics Date: April 17, 2009 Source: Rockefeller University Summary: Anyone who studied a little genetics in high school has heard of adenine, thymine ...

Additions to DNA’s four-letter alphabet have been announced before, but the new letters don’t always fit comfortably into DNA’s double helix. Even slightly awkward letters can distort DNA ...

The Synthetic Human Genome, or Syn HG, a project launched on June 26th, aims to change that. Funded partly by Wellcome, a ...

Nucleotide excision repair is a widespread mechanism for repairing damage to DNA and recognizes multiple damaged bases. This mechanism is used to repair the formation of pyrimidine dimers from UV ...

Because the nucleotide bases that make up DNA bind in a known way (adenine binds to thymine, and guanine binds to cytosine), the scientists can add hundreds of short sequences of complementary DNA ...

To date, people have encoded information into DNA the same way nature has, by linking the four nucleotide bases comprising DNA—A, T, C, and G—into a particular genetic sequence.