Not all the lists. For example, I want to compare list 1 with lists 2 and 3.
I want to see which of the genes in list 1 appear in lists 2 and 3, etc.

I was looking at colour coding the genes that appear, but it could be easier
to put into a seperate sheet?

"Otto Moehrbach" wrote:

Do you want to find only those genes that appear in all 3 lists? Not just 2
lists? What/where do you want to place the list of genes that appear in all
3 lists? In 2 lists only? HTH Otto
"Mark" wrote in message
...
Hi,

I'm looking for some advice as to how to cross reference 3 lists of genes
that I am researching.

I have these lists in a single workbook, with each list in its own
worksheet. The lists start in Cell A1 and vary in size from 337 genes in
the
smaller list and upto 1489 genes in the largest.

Basically, each list refers to the genes of interest in a particular
region.
I'm therefore looking for a way to cross reference these lists to show
which
genes appear in all three regions.

Hope someone can help!

Thanks

Mark