From Wikipedia, the free encyclopedia
Jump to: navigation, search
Featured article DNA is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Even so, if you can update or improve it, please do so.
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured article on February 13, 2007.

Compressed Representation[edit]

Does anyone have information about the recent news that DNA is in a compressed form and that the "junk" is actually part of the decompression mechanics? (kind of like a zip file) That would be an important addition to this article. Actually, it makes sense that the genome would be in the most compressed state to make reproduction efficient.


Since this is Deoxyribonucleic acid, something should be said under "Properties" about its quite strong acidity. It is a polymer of phosphate esters, and "Since a monophosphate ester of this kind is a strong acid (pKa of 1.0), it will be fully ionized at the usual physiological pH (ca.7.4)." I.e. it will be in its conjugate base form in the cell. And the negative charge repels many nucleophiles that would otherwise attack it, so reducing the rate of nucleophilic hydrolysis by several orders of magnitude (these points sourced on this Michigan State University page Nucleic Acids.

Life's first code[edit]

Some students mix DNA with olive oil and tholin, they heat one part only of the liquid they extracted, and they put it back in. Then they extract only a part of the liquid and repeat some partial heating and apply also electric shocks (still partially) and mix again to the main mass of the liquid. Also they add other substances used in different experiments. Who DNA evolved? There's a specific page for it, but I prefer to practical people who study the classic fictional DNA. Functionalists are always closer to the truth, but might not have the fantasy. They just need a push... that I will certainly give! Add more links about simple self copying molecules. — Preceding unsigned comment added by 2A02:2149:844D:800:DDD3:67A8:1F7A:1EF4 (talk) 15:25, 17 October 2017 (UTC)

Inequitable Comparison[edit]

The text states "The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037 and weighs 50 billion tonnes.[4] In comparison, the total mass of the biosphere has been estimated to be as much as 4 trillion tons of carbon (TtC)". I really have no idea how to compare those values... does anybody?!! I am *guessing* the comparison is between "50 billion tonnes" and "4 trillion tonnes"... but this really needs to be clarified (no guessing) or completely eliminated.Hydradix (talk) 09:56, 7 December 2017 (UTC)

Semi-protected edit request on 18 September 2017[edit]

DNA is also the title song for BTS' new album ' LOVE YOURSELF 承 Her ' Please purchase and continue supporting our boys Bangtanwhat (talk) 15:10, 18 September 2017 (UTC)

Not done: Once the song is notable enough to have its own article, it would get added to DNA (disambiguation), not here. —C.Fred (talk) 15:17, 18 September 2017 (UTC)

What DNA stands for[edit]

DNA stands for shake and bake — Preceding unsigned comment added by Wikiwack231 (talkcontribs) 22:20, 21 November 2017 (UTC)