Enhancers in Genes

[genetics24]

In my class we're learning about enhancers. Enhancers have modular organization, meaning one part of them does one thing and another part does another, but collectively they make up the gene's function. Different parts are also expressed in different areas of the body. For example, we learned about the PAX6 gene. This gene has several enhancers that are expressed in differents parts of the body. For instance, one enhancer is for the retina nad another is for the pancreas. What would happen if an enhancer was turned on in a part it wasn't supposed to be? For instance, if the pancreas enhancer was turned on in the retina. Is this even possible?