Identical twins don't have identical DNA. As this ScienCentral News video explains, this surprising research could help scientists better understand genetic diseases in the rest of us.

Last week, scientists from the J. Craig Venter Institute announced that they had created the world's first full bacterial genome.

J. Craig Venter visits Google's Mountain View, CA headquarters to discuss his book, ''A Life Decoded: My Genome: My Life.'' This event took place on November 12, 2007 as part of the Authors@Google series.