Molecular biology is the study of structure and function of biomolecules that includes nucleic acids and proteins. On the other hand, genetics is a specialized branch of science that deals with the study of genes, genetic variation and the pathophysiological implications of the intentional and spontaneous genetic mutations. The combined study of genetics and molecular biology involves in depth analysis of the various biochemical and molecular biological factors that determine heredity of genes and health implications of abnormal hereditary patterns of specific genes.