True, Celera did use its privileged position to hunt for sections of DNA that could be patented for medical applications.
And yet, new studies suggest that in human genomes whole sections of DNA might be duplicated, deleted or reversed.
They found that humans lack 510 short sections of DNA that are present in the other animals.
The three variants discovered by his group and Dr. Sklar's involve the deletion of large sections of DNA from specific sites in a patient's genome.
The researchers looked for sections of DNA that humans shared with the other animals, which split from our lineage at different points in history.
The scientists are still working out what many of the lost sections of DNA do, but expect to find more evidence of how humans differ genetically from chimpanzees.
Gang Bao at Georgia Institute of Technology makes nanoscale DNA repair-bots, which snip out damaged sections of DNA and using a template, replace them with undamaged segments.
Having large sections of DNA in the wrong place or orientation probably makes little difference to biologists searching for genes with a particular sequence of DNA letters.
These are sections of DNA that protect the ends of chromosomes from decay.
Additional histones are wrapped by successive sections of DNA, forming a series of nucleosomes like beads on a string.
Using the system scientists can target specific sections of DNA, delete them, and if necessary, insert new genetic sequences.
