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I wanted sdto look up RNA in the wikipedia thinking that it would be able to give me a good starting point to understanding it. However, what I got was what's posted which tells me absolutely nothing as a newbie to genetics. Could someone please lay some ground rules about this kind of thing. It seems to me that since you can put lots of links in the definition of an entry, the entry loses it's coherence for someone like me. I think a good rule for wikipedia entries is that there should only be 3 links allowed in the opening general description paragraph of an article.
basically DNA the instructions for are organisms is found in the nucleus. however it can not leave the nucleus so when "instructions" need to be send out, part of the DNA is unraveled and copied. dna is made of four base pairs. i shall use just the letters A, T, C ang G. amazing yes that all life is described in changing patterns of these. A always pairs with T and C with G. because DNA is two strands. when copying dna the two strands are unraveled and one side is copied because if know one side you know the other. RNA bases (the same as DNA bases except use U instead of T) go into the nucleus and bind to the complimentary DNA bases. They then polymerise into the RNA strand. This is transcription. If it is a mRNA then it is later translated into protein.
that is the most basic explaination without getting into virii and other things.
I don't like the recently added figure. The main difference between RNA and DNA are the hydroxyl groups on RNA. The figure does not show them and implies the only differences are uracil <-> thymine, and that RNA is single-stranded, which is not universally true. Rotavirus like many other viruses has a genome of double-stranded RNA. True, it's a pretty picture, but it's wrong. Graham Colm (talk) 19:19, 23 March 2010 (UTC)
Hi GrahamColm! Thanks for the information. The pictures has already been removed by Narayanese. Best wishes, --Sponk (talk) 04:24, 24 March 2010 (UTC)
"Ribonucleic acid (RNA) is one of the three major macromolecules (along with DNA and proteins) that are essential for all known forms of life." What about polysaccharides and lipids? —Preceding unsigned comment added by 22.214.171.124 (talk) 03:36, 1 March 2011 (UTC)