https://phys.org/news/2018-11-rnai-secret-food.html

What you might not know is that DNA has a little brother, ribonucleic acid (RNA). But you should, because biologists are doing some pretty exciting things with it.

RNA is the postie for genetic messages in our body. If DNA wants to tell your body to produce insulin to control your blood sugar, it's RNA that carries the message to your cells. By harnessing this postie power, we can change the way plants behave.