The domain of one generation to another is full of mystery, and Molecular Genetics aims at simplifying the analysis of genes by providing information about how genes are transmitted and probable errors that can occur during this process. Genetic variation can result in mutant genes through natural polymorphism, which are inherited genetic errors. This field helps medical professionals understand the inheritance of multi- and single-gene diseases, with varying impacts on individuals and populations. Molecular Genetics also explores the tools used in veterinary and medical science, providing information on best-suited tools for these domains. The study has significant implications for clinical practice, emphasizing the importance of understanding molecular genetics in biology and medicine. Furthermore, ethical considerations are crucial in medical and molecular sciences, requiring awareness of various approaches and aspects. Ultimately, Molecular Genetics aims to enable students and practitioners to demonstrate and understand knowledge of molecular aspects of living cells, structures, and mechanisms.