a medium-sized chromosome with one long and one short arm. The position of the centromere, which separates the p and q arms, is shown by the hatched area. This particular idiogram depicts the ...

For instance, the telomeres on chromosome 1's short arm (1p) differed by more than six kilobases between its two parts, 1pM and 1pP — the maternal (M) and paternal (P) chromosomes, respectively.