Definitions for "Isochromosome"
A chromosome with two genetically and morphologically identical arms.
An abnormal, symmetrical chromosome, consisting of either two 'long arms', or two 'short arms'. An isochromosome of a chromosomeâ€(tm)s long arms will contain duplicated genes present on the long arms, and be missing genes from the short arms.
A metacentric chromosome in which the p and q arms are of equal length and the information in each of the two arms is genetically identical (iso = equal).