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== Loads of prebiotic molecules found in Milky Way? == | |||
== Comparison between RNA and DNA figure == | |||
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. ] like many other viruses has a genome of double-stranded RNA. True, it's a pretty picture, but it's wrong. ] (]) 19:19, 23 March 2010 (UTC) | |||
:Hi GrahamColm! Thanks for the information. The pictures has already been removed by ]. Best wishes, --] (]) 04:24, 24 March 2010 (UTC) | |||
FWIW - (For being ''aware only'' of newly published relevant studies - not necessarily to incorporate into the main article) - On 8 July 2022, astronomers reported the discovery of massive amounts of ]s, including for ], in the ] of the ].<ref name="SA-20220708">{{cite news |last=Starr |first=Michelle |title=Loads of Precursors For RNA Have Been Detected in The Center of Our Galaxy |url=https://www.sciencealert.com/scientists-have-found-a-bunch-of-rna-precursors-in-the-galactic-center |date=8 July 2022 |work=] |accessdate=9 July 2022 }}</ref><ref name=FASS-20220708">{{cite journal |author=Rivilla, Victor M. |display-authors=et al. |title=Molecular Precursors of the RNA-World in Space: New Nitriles in the G+0.693−0.027 Molecular Cloud |url=https://www.frontiersin.org/articles/10.3389/fspas.2022.876870/full |date=8 July 2022 |journal=] |doi=10.3389/fspas.2022.876870 |accessdate=9 July 2022 }}</ref> - Stay Safe and Healthy !! - ] (]) 13:09, 10 July 2022 (UTC) | |||
The main difference of RNA and DNA is that, RNA is single stand while DNA is double stand or double helix structure and it contains hydrogen bonding between them . RNA stands for ribo nucleic acid while DNA stands for deoxyribo nucleic acid, I other words RNA contain ribose sugar while DNA contain deoxyribo sugar. ] (]) 09:21, 3 August 2016 (UTC) | |||
{{reflist-talk}} ] (]) 13:09, 10 July 2022 (UTC) | |||
::{{reply|Shoaib Afzal Khan}} That's a six-year-old discussion you are responding to. Are you wanting to make an edit to the article? ]<sup><small><b>] ]</b></small></sup> 14:39, 3 August 2016 (UTC) | |||
== double stranded molekul by default? == | |||
==Download RNA== | |||
I've been looking all over the internet to find a model of RNA for my Molecules app on my Mac (http://itunes.apple.com/us/app/molecules/id444014972?mt=12), but I can't find one anywhere. Could someone help me find on please? ] (]) 14:28, 1 May 2012 (UTC)! | |||
Just looking superficially at the images in the article, one can think that RNA is a (mostly) double stranded molecule. however, that is not true as far I know. I think at least, first image should be a single stranded RNA image. ] (]) 02:41, 2 January 2023 (UTC) | |||
== External links modified == | |||
== Too technical first sentence == | |||
Hello fellow Wikipedians, | |||
The first sentence leans on very specialized terms. | |||
I have just added archive links to {{plural:2|one external link|2 external links}} on ]. Please take a moment to review . If necessary, add {{tlx|cbignore}} after the link to keep me from modifying it. Alternatively, you can add {{tlx|nobots|deny{{=}}InternetArchiveBot}} to keep me off the page altogether. I made the following changes: | |||
*Added archive https://web.archive.org/20150208155941/http://www.sciam.com/article.cfm?articleID=00045BB6-5D49-1150-902F83414B7F4945 to http://www.sciam.com/article.cfm?articleID=00045BB6-5D49-1150-902F83414B7F4945 | |||
*Added archive https://web.archive.org/20120309212648/http://deposit.ddb.de/cgi-bin/dokserv?idn=982323891&dok_var=d1&dok_ext=pdf&filename=982323891.pdf to http://deposit.ddb.de/cgi-bin/dokserv?idn=982323891&dok_var=d1&dok_ext=pdf&filename=982323891.pdf | |||
Abbreviated: ''RNA is essential in various biological roles in coding, decoding, regulation and expression of genes.'' | |||
When you have finished reviewing my changes, please set the ''checked'' parameter below to '''true''' to let others know. | |||
In the first sentence we should strive to convey the essentials in a way that many can understand. Here is a trial: | |||
{{sourcecheck|checked=true}} | |||
RNA is essential for all biological functions, either by performing that function itself (]) or by forming a template for production of proteins (]). ] (]) 08:00, 5 July 2023 (UTC) | |||
Cheers. —]<small><sub style="margin-left:-14.9ex;color:green;font-family:Comic Sans MS">]:Online</sub></small> 12:15, 27 August 2015 (UTC) | |||
:Sourcechecked. SciAm article appears to be behind a paywall, but I don't think that counts as an archive failure. ]<sup><small><b>] ]</b></small></sup> 14:36, 3 August 2016 (UTC) | |||
== Better introductory picture == | |||
==(comment added 10 Feb 2016)== | |||
The complementary base to adenine in DNA is thymine, whereas in | |||
RNA, it is uracil, which is an unmethylated form of thymine. | |||
is a good introductory picture for RNA. The site says that it is public domain. ] (]) 08:55, 5 July 2023 (UTC) | |||
I have doubts about that. Normally RNA is single stranded, and sometimes it doesn't contains uracil (ebola virus). Does all | |||
dsRNA virus contains uracil ? <small class="autosigned">— Preceding ] comment added by ] (]) 17:45, 10 February 2016 (UTC)</small><!-- Template:Unsigned IP --> <!--Autosigned by SineBot--> |
Latest revision as of 20:28, 8 April 2024
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(comment from August 2005)
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.
Loads of prebiotic molecules found in Milky Way?
FWIW - (For being aware only of newly published relevant studies - not necessarily to incorporate into the main article) - On 8 July 2022, astronomers reported the discovery of massive amounts of prebiotic molecules, including for RNA, in the galactic center of the Milky Way Galaxy. - Stay Safe and Healthy !! - Drbogdan (talk) 13:09, 10 July 2022 (UTC)
References
- Starr, Michelle (8 July 2022). "Loads of Precursors For RNA Have Been Detected in The Center of Our Galaxy". ScienceAlert. Retrieved 9 July 2022.
- Rivilla, Victor M.; et al. (8 July 2022). "Molecular Precursors of the RNA-World in Space: New Nitriles in the G+0.693−0.027 Molecular Cloud". Frontiers in Astronomy and Space Sciences. doi:10.3389/fspas.2022.876870. Retrieved 9 July 2022.
{{cite journal}}
: CS1 maint: unflagged free DOI (link)
Drbogdan (talk) 13:09, 10 July 2022 (UTC)
double stranded molekul by default?
Just looking superficially at the images in the article, one can think that RNA is a (mostly) double stranded molecule. however, that is not true as far I know. I think at least, first image should be a single stranded RNA image. Araz Zeyniyev (talk) 02:41, 2 January 2023 (UTC)
Too technical first sentence
The first sentence leans on very specialized terms.
Abbreviated: RNA is essential in various biological roles in coding, decoding, regulation and expression of genes.
In the first sentence we should strive to convey the essentials in a way that many can understand. Here is a trial:
RNA is essential for all biological functions, either by performing that function itself (Non-coding RNA) or by forming a template for production of proteins (messenger RNA). Ettrig (talk) 08:00, 5 July 2023 (UTC)
Better introductory picture
Here is a good introductory picture for RNA. The site says that it is public domain. Ettrig (talk) 08:55, 5 July 2023 (UTC)
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