| pter | end of short arm of chromosome |
|---|---|
| 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... |
| late replicating chromosome | A chromosome (often anomalous) that is shown, e.g., by incorporation of a labelled nucleotide, to undergo delayed duplication preliminary to mitosis; formerly used as a means of distinguishing members of a group of chromosome's. (05 Mar 2000) |
|---|---|
| fragile x chromosome | X chromosome with a fragile site associated with a frequent form of mental retardation. The fragile X chromosome was first sighted by Herbert A. Lubs in 1969. The fragile X is also called FRAXA (the second A signifies it was the first FRAgile site found on the X chromosome). It is due a trinucleotide repeat (a recurring motif of 3 bases) in the DNA at that spot. (12 Dec 1998) |