There are several key technologies used in genomic sequencing: - Sanger Sequencing: The first method developed for DNA sequencing, known for its accuracy but limited in throughput. - Next-Generation Sequencing (NGS): Allows for massive parallel sequencing, making it faster and more cost-effective. - Third-Generation Sequencing: Techniques like PacBio and Oxford Nanopore, which provide longer reads and real-time sequencing.