: Search for a taxon (e.g., Saccharomyces cerevisiae ) in the NCBI Datasets search bar. Step 2 : Click the Download button.

: Click Create File . NCBI will concatenate all selected sequences into one multi-FASTA file. Method 3: Using "NCBI Datasets" (Best for Genomes)

Downloading genetic sequences in FASTA format from the is a fundamental skill for bioinformatics, whether you are analyzing a single gene or a whole genome.

: Enter the accession number (e.g., NM_000558 ) or keywords (e.g., human hemoglobin subunit beta ) and hit Search.