Deoxyribonucleic acid (DNA) extracted from fish sperm has various applications in scientific research and biotechnology. It is commonly used as a model DNA source in molecular biology experiments due to its high purity and availability. Researchers utilize it for studying DNA structure, function, and interactions with proteins or other molecules. It is also employed in polymerase chain reaction (PCR) as a template to amplify specific DNA sequences. Additionally, fish sperm DNA serves as a substrate for enzymatic assays, such as those involving nucleases or DNA-modifying enzymes. In bioengineering, it is used to develop gene delivery systems or as a component in DNA-based nanomaterials. Its biocompatibility and ease of modification make it valuable for creating biosensors and diagnostic tools. Furthermore, it is used in educational settings to demonstrate fundamental DNA techniques, such as gel electrophoresis and DNA sequencing.