Godlike Productions - Conspiracy Forum
Users Online Now: 1,557 (Who's On?)Visitors Today: 118,272
Pageviews Today: 155,091Threads Today: 35Posts Today: 803
01:05 AM

Rate this Thread

Absolute BS Crap Reasonable Nice Amazing

DNA has a 521-year half-life

Offer Upgrade

User ID: 783356
United States
10/12/2012 12:06 PM
Report Abusive Post
Report Copyright Violation
DNA has a 521-year half-life
Few researchers have given credence to claims that samples of dinosaur DNA have survived to the present day, but no one knew just how long it would take for genetic material to fall apart. Now, a study of fossils found in New Zealand is laying the matter to rest — and putting paid to hopes of cloning a Tyrannosaurus rex.

After cell death, enzymes start to break down the bonds between the nucleotides that form the backbone of DNA, and micro-organisms speed the decay. In the long run, however, reactions with water are thought to be responsible for most bond degradation. Groundwater is almost ubiquitous, so DNA in buried bone samples should, in theory, degrade at a set rate.

Determining that rate has been difficult because it is rare to find large sets of DNA-containing fossils with which to make meaningful comparisons. To make matters worse, variable environmental conditions such as temperature, degree of microbial attack and oxygenation alter the speed of the decay process.

Read article here: [link to www.nature.com]

sorry no jurassic park!