| PWCR | Prader-Willi chromosome region |
|---|---|
| q | each, every [Lat. quaque]; electric charge; long arm of chromosome; quart; quintal |
| qter | end of long arm of chromosome |
| RCC | radiological control center; rape crisis center; ratio of cost to charges; receptor-chemoeffector co... |
| REC | receptor; recombination, recombinant [chromosome] |