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 animals have regions that do not code for proteins?" with the following options: 
- fur and fat
 - eukaryotes
 - fur seals
 - barnacles
 - sensory neurons
 - chickens
 - bioaerosols
 - mammals


 

  eukaryotes       