Why is it necessary to identify marker genes?

It is necessary to identify marker genes for several reasons. One reason is because marker genes help classify cells based on their RNA content, allowing researchers to distinguish between different cell types. Marker genes also enable tracing RNA molecules back to their originating cells, providing information about individual cell activity and behavior within a population. Additionally, marker genes aid in computationally grouping similar cells, facilitating the analysis of large datasets and identification of gene expression patterns within specific cell types.