You are presented with the quiz "Prokaryotes lack regions that do not code for proteins, while this type of living being has them:" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "introns are regions that do not code for proteins" and "prokaryotes lack introns, whereas eukaryotes contain introns". 

So, what's the best answer to the question?


 

       eukaryotes    