The scientific journal Nature has published a map of genomic fragments that vary from person to person. The 99.9% of the human genome is equal in all people, only 0.1% varies from one to the other. A single nucleotide can present various variants (SNPs) that are explained in this HapMap.
Although it is not yet composed, according to geneticists, it will be useful to analyze different diseases and understand biological processes such as evolution.