1. Whole Genome Sequencing (WGS): Sequences the entire genome, providing a comprehensive view of genetic alterations. 2. Whole Exome Sequencing (WES): Focuses on the exonic regions, which constitute about 1% of the genome but harbor 85% of disease-causing mutations. 3. Targeted Sequencing: Concentrates on specific genes or regions known to be involved in cancer, allowing for a more cost-effective and faster analysis. 4. RNA Sequencing (RNA-Seq): Analyzes gene expression by sequencing RNA, providing insights into the functional aspects of the genome.