<prompt> The long and sho arms of chromosomes are designed respectively as:p and q armsm and q armsq and p armsl and s arms  <response>: The sho arm of the chromosome is designated the letter p p for petit in french and the long arm of the chromosome is designated the letter q the next alphabet to p. Ref: Pathologic Basis of Disease, Robbins, 7th Edition, Page 171; Medical Transcription Made Easy By Alok Jha, 2003 Edition, Page 260 