Some sibling GO categories are highly correlated. Is there any tool / webserver that would take a list of GO terms and show me a matrix of the fraction of shared genes in a particular species? Or at least a Venn diagramm for two or three GO terms?
For example, almost 1000 human genes are annotated as "cell cycle", but the sum of the node counts is much higher. I'd like to see which categories are overlapping with each other.