According to Nature, palaeogeneticists led by Morten Allentoft at the University of Copenhagen and Michael Bunce at Murdoch University in Perth, Australia, looked at the DNA they found in the leg bones of the extinct moa bird and where able to determine the half life of DNA. Reportedly, DNA will stay in one piece for only 521 years.
By comparing the specimens' ages and degrees of DNA degradation, the researchers calculated that DNA has a half-life of 521 years. That means that after 521 years, half of the bonds between nucleotides in the backbone of a sample would have broken; after another 521 years half of the remaining bonds would have gone; and so on.
The team predicts that even in a bone at an ideal preservation temperature of -5 °C, effectively every bond would be destroyed after a maximum of 6.8 million years. The DNA would cease to be readable much earlier -- perhaps after roughly 1.5 million years, when the remaining strands would be too short to give meaningful information.
|“If there’s any kind of future for 'designer babies', it might look something like this.”|
|Crowd-Funded Patent-Free Cancer Drug|
|“Regenerative medicines have the ability to restore or heal the body's own cells or create new body parts”|
|Why the swine flu virus is not a major threat|
|IBM's Watson Saves the Life of Patient by Correctly Indentifying Her Disease|
|“Lifting the electric motors out of Teslas and putting them in the chassis of other, formerly gas guzzling cars.”|
|How to Avoid Jury Duty|
|“What can we do to make responsible use of plastic a reality? First: reject the lie.”|
|Japanese Robot Serves Ice Cream From Inside a Vending Machine|
|Go the Fuck to Sleep: A Children's Bedtime Book|
|On Instagram, Everyone Takes the Exact Same Photos|
|“The cost could be so near to zero it will effectively be free.”|
|“Sending you changes in your media feed that are calculated to adjust you slightly to the liking of some unseen advertiser.”|
|CaptchaTweet: Write Tweets in Captcha Form|
|“Rejuvenation is Finally an Industry.”|
|Google Map Shows You the Most Photographed Areas of the World|
|“He portrays these abandoned malls as apocalyptic ruins.”|