Molecular analysis is a research area in biology that focuses on studying the structure, function, and interactions of biomolecules at the molecular level. This includes analyzing DNA, RNA, proteins, and other molecules to understand how they contribute to biological processes and diseases. Researchers in this field use various techniques such as polymerase chain reaction (PCR), gel electrophoresis, mass spectrometry, and sequencing to investigate the molecular basis of cellular functions. By studying molecular interactions, researchers can gain insights into genetic mutations, protein functions, and other biological processes that are essential for understanding health and disease.