You are presented with the question "how are regions that do not code for proteins removed?" and the following answer choices: 
- layers of fat
 - RNA splicing
 - aqueous solution
 - by indirect light
 - permineralization
 - Dilution
 - scarce resources
 - adding heat

Now knowing that introns are regions that do not code for proteins and introns are removed by RNA splicing, choose the best answer.


 

  RNA splicing       