[BiO BB] Gene Ontology

[nikhil gadewal]

Dear All,

I have a list of genes with gene symbol (entrez) which has to be annotated by 
gene ontology. 

I am looking for online tool which takes genelist as input and will give 
output the genes which are involved in bioloical process and molecular funtion.
For eg. Out of 100 genes (genelist) submitted, will give output say 30 genes are 
involved in "Signal transduction" (biological process).
If anyone know such kind of tool than please let me know.
Thankyou in advance.

Nikhil