How long will DNA last?
That means that, under ideal conditions, DNA would last about 6.8 million years, after which all the bonds would be broken.
But DNA would not be readable after about 1.5 million years, the researchers said.
The oldest DNA recorded was found in Greenland ice, and estimated to be between 450,000 and 800,000 years old.
How long does DNA last in dried blood?
Data is available to indicate that DNA can be successfully extracted from dried blood spots, which have been stored for at least 10 years.
How long can DNA last in fossils?
Scientists have estimated that under the most ideal conditions, DNA can theoretically survive for a maximum of one million years.
Can DNA be washed away?
Use a Special Detergent. Murderers desperate to get rid of evidence might want to consider using bleach to wash away stains. But not just any bleach will do. When old-school chlorine-based bleach is splashed all over blood-stained clothing, even if the clothes are washed ten times, DNA is still detected.