In the context of cancer research, RNA-Seq offers several critical advantages. It allows researchers to identify and quantify the expression of thousands of genes simultaneously, uncovering gene expression changes associated with cancer. This can lead to the discovery of novel biomarkers for diagnosis, prognosis, and therapeutic targets. RNA-Seq can also reveal alternative splicing events, gene fusions, and non-coding RNA species, all of which can play roles in cancer development and progression.