Fact 1: Introns are regions that do not code for proteins.

Fact 2: Introns are found in eukaryotes.

Given the two facts above, answer the question "what have regions that do not code for proteins?" with the following options: 
- genus
 - barnacles
 - graptolites
 - roots
 - ferns
 - animals
 - eukaryotes
 - sensory neurons


 

       eukaryotes  