Atlantis Online
April 02, 2020, 05:25:48 am
Welcome, Guest. Please login or register.

Login with username, password and session length
News: 'Europe's oldest city' found in Cadiz
http://mathaba.net/rss/?x=566660
 
  Home Help Arcade Gallery Links Staff List Calendar Login Register  

Method found to read 30,000-year-old DNA

Pages: [1]   Go Down
  Print  
Author Topic: Method found to read 30,000-year-old DNA  (Read 29 times)
Trisha Sinclair
Superhero Member
******
Posts: 2826



« on: January 02, 2010, 07:30:41 pm »

Method found to read 30,000-year-old DNA
Decrease text sizeIncrease text size
January 3rd, 2010
By Our Correspondent , IANS



London: Researchers have developed a way to analyse DNA samples from human remains 30,000 years ago, allowing a direct look into the history of evolution.
DNA — the hereditary material contained in the nuclei and mitochondria of all body cells — is a hardy molecule and can persist, conditions permitting, for tens of thousands of years. Using ancient DNA extracted from bones, the biology of extinct animals, such as mammoths, as well as of ancient humans (the Neanderthals), has been successfully studied in recent years. But the special probes that made them possible, cannot distinguish whether the DNA comes from the ancient human sample or was introduced much later, for instance by the archaeologists who handled the bones.
Thus, conclusions about the genetic make-up of ancient humans of our own species were fraught with uncertainty. Using the remains of humans that lived in Russia about 30,000 years ago, Svante Pääbo from the Max-Planck Institute for Evolutionary Anthropology in Leipzig, Pääbo and his colleagues made use of the latest DNA sequencing (reading the sequence of bases that make up the DNA strands) techniques to overcome this problem. These techniques, known as “second-generation sequencing”, enable the researchers to “read” directly from ancient DNA molecules, without having to use probes to multiply the DNA.

http://www.deccanchronicle.com/international/method-found-read-30000-year-old-dna-826
Report Spam   Logged

Share on Facebook Share on Twitter



Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by EzPortal
Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum
Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy