In fact, Watson and Crick were worried that they would be "scooped" by Pauling, who proposed a different model for the three-dimensional structure of DNA just months before they did. In the end ...

The latest model is based on 128,000 genomes, including those of humans and other animals, plants and other eukaryotic organisms. These genomes encompass a total of 9.3 trillion DNA letters.

The original model of DNA structure created by Crick ... All human cells contain DNA. The 3 billion pairs of bases in each cell fit into a space that is six microns across. If the DNA in one ...