It is a good question

Hi Anissa,

if you have everything in your lab which is necessary to do it just try the protocoll I have attached from this link:

www.cancergeneticsitalia.com/wp-content/uploads/2010/05/FISH-Protocol-FFPE1.pdf

wish you the best ;)

Hi Anissa,

I am assuming you want to detect RNA. Attached is the link for the  protocol I used for performing fluorescent in situ hybridization on zebrafish and mouse paraffin sections.

https://insitutech.wordpress.com/2015/12/17/in-situ-hybridization/

I hope this helps. Good luck.

Simone

thank you Christian and Simone :)