Molecular biology tools refer to a range of laboratory instruments and reagents used to study and manipulate DNA, RNA, and proteins. Some commonly used molecular biology tools include restriction enzymes, DNA ligases, polymerases, gel electrophoresis apparatus, PCR machines, and DNA sequencing devices. These tools are essential for performing techniques such as cloning, DNA sequencing, gene expression analysis, and genetic engineering. Molecular biology tools have revolutionized the field of genetics and have led to significant advances in medicine, biotechnology, and agriculture.