DNA in dino bones
According to Jonathan Sarfati
“For the past two decades, Dr Mary Schweitzer, although a committed (theistic) evolutionist herself, has been rocking the evolutionary/uniformitarian world with discoveries of soft tissue in dinosaur bones.”
“These discoveries have included ligaments, blood and bone cells; flexible blood vessels; proteins like collagen, osteocalcin, actin, and histones, and most importantly, DNA. Her team detected DNA in three independent ways, including DAPI, which lodges in the minor groove of a DNA double helix. This shows that the DNA was quite intact, since short strands of DNA less than about 10 ‘letters’ don’t form stable duplexes.”
“However, a recent paper on DNA stability estimates that, even when preserved in bone, it would be completely disintegrated down to single ‘letters’ in 22,000 years at 25°C (77°F), 131,000 years at 15°C (59°F), 882,000 years at 5°C (41°F); and 6.83 million years at –5°C (23°F).Thus the researchers stated:”
Earlier, Safarti had asserted that DNA is a highly unstable molecule that requires delicate care and storage conditions.
“DNA is a very complicated molecule, and actually a very unstable one. DNA researchers often need to store it in liquid nitrogen, at –196°C (77 K; −320°F), and even that frigid temperature doesn’t entirely stop breakdown.”
Thu, when speaking of the recent DNA find, in what appears to be fresh dinosaour bones he concluded with the following:
“However, even under the best preservation conditions at –5°C, our model predicts that no intact bonds (average length = 1 bp [base pair]) will remain in the DNA ‘strand’ after 6.8 Myr.”
“This displays the extreme improbability of being able to amplify a 174 bp DNA fragment from an 80–85 Myr old Cretaceous bone.”
It is important to highlight that, dinosaurs mostly lived in a warm climate, where DNA would break even more quickly, according to the above data.
Dinosaurs could not be that old then.