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Offline Suppressed

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Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« on: March 15, 2018, 12:44:33 am »

Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
POSTED 1:06 PM, MARCH 14, 2018, BY CNN WIRE, UPDATED AT 02:37PM, MARCH 14, 2018
http://ktla.com/2018/03/14/astronauts-dna-no-longer-matches-his-identical-twins-after-year-spent-in-space-nasa-finds/

Spending a year in space not only changes your outlook, it transforms your genes.

Preliminary results from NASA's Twins Study reveal that 7% of astronaut Scott Kelly's genes did not return to normal after his return to Earth two years ago.

[...]
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Offline Suppressed

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #1 on: March 15, 2018, 12:45:18 am »
@Freya @kevindavis
Important findings
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Online Cyber Liberty

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #2 on: March 15, 2018, 12:47:07 am »
That would explain it.  One is reasonable, the other turned into a wild-eyed gun grabber.  Huh.  Note:  according to the grabbers, the grabber is the "normal" one.
« Last Edit: March 15, 2018, 12:48:41 am by Cyber Liberty »
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Offline Polly Ticks

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #3 on: March 15, 2018, 01:22:02 am »
Interesting.
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Offline Free Vulcan

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #4 on: March 15, 2018, 01:46:53 am »


What? What do you mean changed?
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Online roamer_1

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #5 on: March 15, 2018, 01:50:42 am »
There were probes involved, I guarantee it.
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Offline Sanguine

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #6 on: March 15, 2018, 01:51:23 am »
Quote
Although 93% of Scott's genetic expression returned to normal once he returned to Earth, a subset of several hundred "space genes" remained disrupted. Some of these mutations, found only after spaceflight, are thought to be caused by the stresses of space travel.

Fascinating.  Genes can change in response to environmental conditions?
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Offline InHeavenThereIsNoBeer

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #7 on: March 15, 2018, 02:19:43 am »
Quote from: Suppressed on March 15, 2018, 12:45:18 am
@Freya @kevindavis
Important findings

Certainly interesting, but important?

My first question would be how this differs from twins at their age where neither have gone into space.   Needs context.

My second question would be just how and where the measurements are/were made.  For example, if the genes that were used to determine my eye color are changed in a few cells of my left bicep, so what?
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Offline InHeavenThereIsNoBeer

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #8 on: March 15, 2018, 02:35:11 am »
Quote from: Sanguine on March 15, 2018, 01:51:23 am
Fascinating.  Genes can change in response to environmental conditions?

Sure (though the article actually says genetic expression changed).

If you're a reader, you might want to check out Nature Via Nurture by Matt Ridley.  I also enjoyed his earlier work Genome.
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Online bigheadfred

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #9 on: March 15, 2018, 03:06:01 am »
Quote from: Sanguine on March 15, 2018, 01:51:23 am
Fascinating.  Genes can change in response to environmental conditions?

Absolutely. Loose-fitting genes for work. Tight fitting for grocery shopping.

One of the "big" controversies in my little world is the difference between evolution and gene expression.  Meaning there is no such thing as "junk" DNA. Your DNA is coded to adapt--express itself. Due to environmental changes.

It is my belief those DNA changes can occur simultaneously to stress points. Meaning, "you are such a bitch--such a bastard" and/or just the opposite. Saying chemical changes in the body/brain can instantaneously/spontaneously trigger gene activation or suppression.

It isn't evolution. It is the adaptation.

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Offline Sanguine

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #10 on: March 16, 2018, 07:16:09 pm »
Update and correction:

Quote
We Were Totally Wrong About That Scott Kelly Space Genes Story

 On Monday (March 12), we published a story about astronaut Scott Kelly returning after a year in space with big changes to his genetic code, so much so that he was no longer his brother's identical twin.

It turns out we got the story wrong in a big way. In the original story, we reported that 7 percent of Kelly's genetic code had changed after his stint in space. But that enormous level of genetic change would mean Kelly went to outer space and came back a space alien: All humans share more than 99 percent of our DNA, and we share more than 98 percent of our DNA with chimpanzees, our closest living relatives.

That divergence in chimp versus human DNA comes from roughly 40 million mutations in the base-pairs, or letters, that make up the genetic code, Live Science previously reported. By contrast, in a press release from NASA, researchers reported hundreds of unique mutations in the DNA of both Scott and Mark Kelly (his identical twin brother)....

https://www.livescience.com/62044-scott-kelly-space-genes-not-changed.html
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Offline Polly Ticks

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #11 on: March 16, 2018, 07:45:26 pm »
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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #12 on: March 16, 2018, 09:00:33 pm »
Quote from: Polly Ticks on March 16, 2018, 07:45:26 pm
Oops.

The Earthbound one is still a loony toon gun-grabber.
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Offline Polly Ticks

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #13 on: March 16, 2018, 09:06:24 pm »
Quote from: Cyber Liberty on March 16, 2018, 09:00:33 pm
The Earthbound one is still a loony toon gun-grabber.

Yep.  Let's send him up into space and see if he grows some smarter DNA.
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Online Cyber Liberty

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #14 on: March 16, 2018, 09:40:58 pm »
Quote from: Polly Ticks on March 16, 2018, 09:06:24 pm
Yep.  Let's send him up into space and see if he grows some smarter DNA.

His wife is living proof you can blow a Democrat's brains out and she'll still talk.  They're a perfect couple.  (That's too bad, really, because for a Dem I actually liked her.  Before she became another gun-grabbing Loonie)
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Offline truth_seeker

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #15 on: March 16, 2018, 09:47:05 pm »
Quote from: Sanguine on March 15, 2018, 01:51:23 am
Fascinating.  Genes can change in response to environmental conditions?
Not limited to "genes," but also to other material apparently.

"Epigenetics."
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Online bigheadfred

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #16 on: March 17, 2018, 04:41:35 am »
Quote from: truth_seeker on March 16, 2018, 09:47:05 pm
Not limited to "genes," but also to other material apparently.

"Epigenetics."

True that. But... in the long run...

Every Human Being has the exact same DNA. EVERY ONE.


The only difference is in the semantics.

And I'll tell you all again. And again.

There is only ONE race, The human race. Don't you all get it it? It is easy. It doesn't really matter the color of your skin, your gender, or any "other" excuse. It is the strength of your character.

I'm not the first to tell you all this. But if there is any true justice, I will be second last.




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Offline Gefn

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Re: Astronaut’s DNA No Longer Matches His Identical Twin’s After Year Spent in Space, NASA Finds
« Reply #17 on: March 18, 2018, 04:10:01 pm »
Apparently in the last 24 hours the story has been debunked
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