Time for Thorns

An independent view on life.

Posts Tagged ‘DNA

35 years cold…

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…but never forgotten.   DNA has solved a 35-year-old murder case,  making  justice delayed,  but not denied.   Hats off to the police who didn’t quit,  and to the scientists who used modern technology to find the killer.

 

 

Written by timeforthorns

March 23, 2020 at 1:35 pm

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Ghost hunt…

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No,  I don’t mean wraiths floating about haunted places.  I’m referring to the scientific search for ghost species,  because human DNA suggests strongly some of our  ancestors are  missing.

When I was in school we learned about Neanderthals, but no one had ever heard of Denisovans,  despite the fact that some living humans can trace as much as 5% of their ancestry to them.

What I find cool  is that the researchers are using deep learning to track down these missing populations resulting from breeding amongst other human species.  This is a type of artificial intelligence in which algorithms are designed to work as an artificial neural network,  or a program that can process information the same way a mammalian brain would.

It’s fascinating work,  as you can see from the charts.

 

Written by timeforthorns

February 9, 2019 at 3:39 pm

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Waterbear revival…

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You may know the microscopic water-dwelling organisms as water piglets,  or if, unlike me,  you remember any of your science classes, you may come up with the proper name of tardigrades.   They  matter because scientists have revived some which had been frozen for more than thirty years.  One survived long enough to reproduce,  so  researchers are seeking to unravel the mechanism for long-term survival by looking into damage to tardigrades’ DNA and their ability to repair it.

 

Written by timeforthorns

January 17, 2016 at 11:55 pm

Mining kids for data…

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The Obama Administration is using your tax dollars to bribe schools to test students’ mental health  under the rubric of gun safety.   The data will be maintained by the feds,  who also want DNA samples.  So far only Rhode Island has swallowed that particular poison pill, but you need to read this and investigate your local schools,  because the education bureaucracy will not volunteer the information.   Educrats are not your friends.

 

 

 

Written by timeforthorns

November 10, 2014 at 10:17 am

Want your DNA tracked?

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As if nation-wide vehicle tracking weren’t enough,  now the feds want to be able  to  track individuals  by their  ” physiological signatures”.   If this doesn’t make your skin crawl and your blood boil,  you ain’t paying attention.

Written by timeforthorns

February 17, 2014 at 10:19 am

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Kissed and caught…

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If you’re going to rob someone,  don’t kiss them on the cheek  —  the  saliva you  leave may nab you.

Written by timeforthorns

February 11, 2014 at 10:23 am

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Second language of DNA…

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Scientists have discovered that  DNA has a second  language stacked atop the one they knew about.   We’ve known for 40 years that DNA code was used to write information about proteins,  but the news is that the second,  hidden code instructs the cell on how genes are controlled.   This could drastically change our understanding of diseases and their potential cures.

Written by timeforthorns

December 14, 2013 at 10:14 am

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Global warming wakes mammoth…

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Well,  it didn’t,  but it has revealed a frozen female,  and a very special one if you believe the Russians’ claim that the  carcass contained liquid  blood and some muscle tissue.   I don’t know how reliable 10 to 15,000 year old DNA might be,  but the next Jurassic Park movie might feature a real woolly mammoth.

Written by timeforthorns

May 31, 2013 at 11:52 pm

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Storage of the future?

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Storage on synthetic   DNA is efficient to the extreme,  which makes sense considering the amount of information natural DNA carries.   That flash drive we now all think is such a storage marvel may soon be considered an antiquated piker.

Written by timeforthorns

January 30, 2013 at 9:14 am

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Extra DNA?

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This poor cherub has  an extra strand of DNA,  and the medical establishment is bewildered.

Written by timeforthorns

April 13, 2011 at 12:24 am

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