I have a genelist from a KEGG pathway say TGFb signalling pathway, that has 80 genes in it (set A). and I have second list of genes with me which accounts for 45 genes (set B), and the overlap between the two sets is of 15 genes.
How can I get a p-value associated with this overlap?
Has anyone done this before?
I think, phyper of R can be applied to this .......