On the occasion of the 15th anniversary of the complete sequencing of the human genome, BENTELI presents this natural masterpiece: Across around 600 pages, Chromosom X and the Human Genome shows the total base sequence of the DNA of a human X chromosome. As in the entire genome, this sequence of bases is unique to each individual. However, the differences in the sequence are very small, differing by a mere one in one thousand letters. However, these minor differences considerably affect our looks and susceptibility to illnesses. The vast and intricate amount of information of the human genome presented in this volume based on the X chromosome, illustrates the practically unlimited scope of human individuality, which is inherent in every single cell.