Molecular Biology Molecular Biology Molecular Biology is a study of science that covers biology, chemistry and genetics to detect a disease or a disease process.Many courses of diseases may not be detected with the simpler chemical tests but can be identified through these advanced investigations.Investigations include HIV, Genetics/DNA screening, Hepatitis C core antigen and other advance investigations. Clinical Biochemistry Haematology Immunology Endocrinology Cytology Medical Microbiology Histopathology Therapeutic Drug Monitoring Molecular Biology