Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Non-coding DNA:

"

Noncoding genes account for only a few percent of prokaryotic genomes[3] but they can represent a vastly higher fraction in eukaryotic genomes.[4] In humans, the noncoding genes take up at least 6% of the genome, largely because there are hundreds of copies of ribosomal RNA genes.[citation needed] Protein-coding genes occupy about 38% of the genome; a fraction that is much higher than the coding region because genes contain large introns.[citation needed]