Original sentence: Cluster (file system), a group of disk sectors used in a File Allocation Table.In genomics, a cluster often refers to a group of genes (or proteins, or metabolites) whose expression or concentration is similar across a range of conditions (see data clustering)
Edited sentence: Data cluster, a group of disk sectors used in a File Allocation Table.In genomics, a cluster often refers to a group of genes (or proteins, or metabolites) whose expression or concentration is similar across a range of conditions (see Cluster analysis)