Copy number variation may stem from replication misstep

jane2007 submitted, created time 1 year 1 week (www.bcm.edu)

Genome rearrangements, resulting in variations in the numbers of copies of genes, occur when the cellular process that copies DNA during cell division stalls and then switches to a different genetic "template," said researchers at Baylor College of Medicine in Houston in a report that appears today in the journal Cell.

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How were DNA and protein molecules formed during the process of the origin of life?

pang xiaofeng submitted, created time 1 year 2 months (www.discover8.com)

We propose a new mechanism for the formation of DNA and protein molecules in the process of the origin of life based on the discovery of clustered chain structures of water molecules of size 2-70nm which exist in addition to the free molecules present in water. We suggest that not only was water a suitable environment for the appearance of DNA and protein molecules in primordial times but also that water molecules, with their clustered chain structures, were the templates for the formation of DNA and protein molecules

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