In women, it's mitochondrial DNA — small loops of genetic material tucked away in the mitochondria of most cells. (discovermagazine.com)
The double arches, which are adjustable, include many small loop attachments to hang other toys from that baby will want to watch. (thespruce.com)
This is very complex game so each of these steps might include several other smaller loops that players would complete in the process. (engagedfamilygaming.com)