Ice Age Ancestry May Keep Body Warmer and Healthier

NY Times ^ | January 9, 2004 | NICHOLAS WADE

[ruoflaw]

I know a guy that spent a year studying archaeology in Scottland and he just loved Haggis...but I just don't think I could eat it much less look at it!

[blam]

"Where's your son been lately?? "

He doesn't come onto FR very often. He's a space scientists in SOCAL.(PhD physics). My only child.

[cyborg]

If I was a space scientist I'm sure I'd be busy too. Understood!

[raynearhood]

"Shocking. How can this be? The creationists keep insisting that all mutations are harmful."

Actually, that is incorrect, sir. Just that where there are beneficial mutations there has never been, nor is mathematically possible to have, enough subsequent beneficial mutations to actually cause any adaptive species change. A dog is a dog is a dog, and never will be otherwise.

"By analyzing the changes in the DNA, they have been able to distinguish positive mutations, those selected because they are good or adaptive, from negative or harmful mutations. In today's issue of the journal Science, they report that several lineages of mitochondrial DNA show signs of positive selection."

Another thing of which one must be careful. Beneficial mutations occurring are often presented as fact when it is, in fact, the extrapolated interpretation of observation by scientists based on the model of science they use. This is called THEORY.
Another scientist could interpret the facts this way:
"By analyzing the changes in the DNA, they have been able to distinguish positive changes, those caused by the specimen's ability to genetically vary within its kind, from negative or harmful mutations."

In the end, neither creationism nor evolutionism is proved or advanced.

Sorry to all.

Present undeniable, observable fact for either side, and I'll bite.

[neverdem]

I frequently scan the Slimes science section. I can't believe they didn't can this story. Sometimes I'll post their articles when I see something that's worth the trouble of posting. I ping you when I do unless you Freepmail me otherwise. No offense would be taken.

[VeritatisSplendor]

Unmentioned here is a very interesting point about mitochondrial evolution. The mutations are transmitted infallibly from mother to child, and not shuffled with the chromosomes. The concepts "dominant" and "recessive" don't apply. This allows for more efficient selective pressure, but only acting through females.

[JudyB1938]

If it's not too much trouble, I would appreciate your adding me to your ping list. Thanks.

[Ernest_at_the_Beach]

Very interesting!

Please add me to your ping list, thanks!

[Notforprophet]

Great article, thanks for posting it.

NFP

[SunkenCiv]

Just updating the GGG information, not sending a general distribution.

Please ping me to other topics which are appropriate for the GGG list. Thanks.

Please FREEPMAIL me if you want on, off, or alter the "Gods, Graves, Glyphs" PING list --
Archaeology/Anthropology/Ancient Cultures/Artifacts/Antiquities, etc.
The GGG Digest -- Gods, Graves, Glyphs (alpha order)

[SunkenCiv]

· join list or digest · view topics · view or post blog · bookmark · post a topic ·
	Gods Graves Glyphs	Just updating the GGG info, not sending a general distribution. To all -- please ping me to other topics which are appropriate for the GGG list. GGG managers are SunkenCiv, StayAt HomeMother, and Ernest_at_the_Beach
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[neverdem]

Thanks for resurrecting the thread, SunkenCiv. See comment# 65. It started my health & science ping list. JudyB1938 and fourdeuce82d have passed away. fourdeuce82d and I were in the same heavy mortar platoon, 1st Battalion, 504th Parachute Infantry Regiment, 1st Brigade, 82nd Airborne Division in the early 1980s.

There's supposed to be a handle on that flaming sword. I didn't notice one at the link.

The early airborne divisions included glider infantry regiments. Don't ask me what's the difference between a brigade and brigade combat team. Army combat brigades were always mixes of combat arms battalions, i.e. infantry and artillery and maybe armor(tanks), plus support troops.

Effects of Purifying and Adaptive Selection on Regional Variation in Human mtDNA

A phylogenetic analysis of 1125 global human mitochondrial DNA (mtDNA) sequences permitted positioning of all nucleotide substitutions according to their order of occurrence. The relative frequency and amino acid conservation of internal branch replacement mutations was found to increase from tropical Africa to temperate Europe and arctic northeastern Siberia. Particularly highly conserved amino acid substitutions were found at the roots of multiple mtDNA lineages from higher latitudes. These same lineages correlate with increased propensity for energy deficiency diseases as well as longevity. Thus, specific mtDNA replacement mutations permitted our ancestors to adapt to more northern climates, and these same variants are influencing our health today.

If you want to register, not subscribe, you can access the whole article. I posted the article as breaking news. They made it chat!

I corrected the spelling in my tagline since then. In Vietnamese it means I'm sorry sweetheart.

[Ernest_at_the_Beach]

Well...this is new to me.,...thanks for the revival.

[GOPJ]

Interesting post, neverdem. Thanks for the ping.

[SunkenCiv]

Yet another way is hot cocoa. :’)

[SunkenCiv]

Glad I could do it.

[SunkenCiv]

the classics never wear out:

The Neandertal Enigma
by James Shreeve
in local libraries

Frayer's own reading of the record reveals a number of overlooked traits that clearly and specifically link the Neandertals to the Cro-Magnons. One such trait is the shape of the opening of the nerve canal in the lower jaw, a spot where dentists often give a pain-blocking injection. In many Neandertal, the upper portion of the opening is covered by a broad bony ridge, a curious feature also carried by a significant number of Cro-Magnons. But none of the alleged 'ancestors of us all' fossils from Africa have it, and it is extremely rare in modern people outside Europe." [pp 126-127]