Genetics is the study of heredity and the variation of inherited characteristics in living organisms. It encompasses a wide range of topics, from the mechanisms of inheritance to the ways in which genetic information is expressed and regulated. Genetics has applications in a variety of fields, including medicine, agriculture, and forensic science.

Molecular biology is a branch of biology that focuses on the study of the molecular basis of biological activity. It encompasses the study of the structure and function of biomolecules, such as DNA, RNA, and proteins, as well as the molecular mechanisms that underlie the regulation of gene expression and cellular processes. Molecular biology has contributed to many breakthroughs in medicine and biotechnology, including the development of gene therapy, genetic engineering, and personalized medicine.