Clustal Omega is a bioinformatics tool used for multiple sequence alignment of proteins and nucleic acids. It helps researchers identify similarities and differences among sequences, which can provide insights into evolutionary relationships and functional characteristics. The software is designed to handle large datasets efficiently, making it suitable for analyzing complex biological information. The tool employs a progressive alignment approach, which builds a multiple alignment by aligning pairs of sequences step by step. Clustal Omega is widely used in molecular biology and genomics, and it is available as both a web-based application and a downloadable software package for local use.