DNA is supposed to be faithfully transcribed into RNA and translated into proteins. But sometimes, changes occur to the RNA. Usually that means that an adenosine becomes inosine, which is then read as guanosine. While this increases the diversity of the transcriptome, the frequency and function of such RNA editing is not clear. Recent studies, including one that researchers from BGI-Shenzhen published in Nature Biotechnology, are finding that RNA editing may be common.