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Groups > comp.lang.forth > #38749
| From | "Alex McDonald" <blog@rivadpm.com> |
|---|---|
| Newsgroups | comp.lang.forth |
| Subject | Re: What happened to forthfreak.net ? |
| Date | 2015-05-01 17:00 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <mi07so$1vo$1@dont-email.me> (permalink) |
| References | <4d897b92-0f59-447b-a0d4-944b59200749@googlegroups.com> <b1669223-faaf-4f85-a49d-946f7bd31152@googlegroups.com> <2015May1.105237@mips.complang.tuwien.ac.at> <0888091f-2492-44ac-a533-f2c6246d8099@googlegroups.com> <mi06ev$s08$1@dont-email.me> |
on 01/05/2015 16:36:02, "Alex McDonald" wrote: > on 01/05/2015 16:04:13, Michael Barry wrote: >> >> There is evidence that certain genetically-related cellular >> characteristics date back two billion years. >> >> "... The oldest eukaryotic cells are from deposits that >> are about 2 billion years old [...] For example, all >> eukaryotic cells share common traits such as the presence >> of a cytoskeleton, a nucleus, membrane-bound organelles, >> linear chromosomes, and endomembrane systems ..." >> >> Source: Kaplan AP Biology, p. 78. > > Those are phenotypes. The claim was for genotypes. This took me back to my Uni years, and after a bit of digging through pubmed, I found this; http://www.ncbi.nlm.nih.gov/pubmed/10617571 The TATA box is an element of many genes that is thought to have been present throughout evolution; it's "highly conserved". It is, however, not a gene and is only 8 base pairs long. Even then it has some variation in the form TATAxAxy where x is A or T and y is A or G. I can't find any papers that show genes with anything like the same degree of conservation over billions of years. Millions perhaps. DNA is not a very good way of storing data through the aeons to be frank. Copying errors will turn Forth into C in just a few generations.
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What happened to forthfreak.net ? Andreas Wagner <andreas.wagner@lowfatcomputing.org> - 2015-04-28 10:35 -0700
Re: What happened to forthfreak.net ? Jason Damisch <jasondamisch@yahoo.com> - 2015-04-30 11:24 -0700
Re: What happened to forthfreak.net ? Jason Damisch <jasondamisch@yahoo.com> - 2015-04-30 11:29 -0700
Re: What happened to forthfreak.net ? "Alex McDonald" <blog@rivadpm.com> - 2015-04-30 21:04 +0100
Re: What happened to forthfreak.net ? Jason Damisch <jasondamisch@yahoo.com> - 2015-04-30 13:10 -0700
Re: What happened to forthfreak.net ? Jason Damisch <jasondamisch@yahoo.com> - 2015-04-30 13:18 -0700
Re: What happened to forthfreak.net ? Jason Damisch <jasondamisch@yahoo.com> - 2015-04-30 15:58 -0700
Re: What happened to forthfreak.net ? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-05-01 08:52 +0000
Re: What happened to forthfreak.net ? Michael Barry <barrym95838@yahoo.com> - 2015-05-01 08:04 -0700
Re: What happened to forthfreak.net ? "Alex McDonald" <blog@rivadpm.com> - 2015-05-01 16:36 +0100
Re: What happened to forthfreak.net ? "Alex McDonald" <blog@rivadpm.com> - 2015-05-01 17:00 +0100
Re: What happened to forthfreak.net ? Michael Barry <barrym95838@yahoo.com> - 2015-05-01 20:11 -0700
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