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 ...

Inversions may involve the centromere. Isochromosomes. These chromosomes have two identical arms. Instead of the usual one p and one q arm, isochromosomes have two p or two q arms. They're lacking ...

Translocations are thus manifested as a change in the length or the banding pattern of a chromosome arm. Over time, cytogeneticists have discovered hundreds, if not thousands, of different human ...

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.