The purpose of the course is the critical understanding of the contribution of the subject of Molecular Biology to Personalized Medicine. As part of the course, postgraduate students are asked to understand the importance of Molecular Biology in Personalized Medicine. The structure and function of the human genome is described and the genotype/phenotype in the postgenomic era is analyzed. Both the flow of genetic information: from DNA to proteins and the regulation of gene expression are described. At the same time, the course aims to acquaint students with RNA biology and cellular communication. In addition, they are analyzed in relation to DNA: the maintenance of genetic information, damage and repair, genetic diversity and the association of its variants with diseases, as well as the genetics of cancer.