<prompt> Chromosome inversion is:A portion of the chromosome is missing or deletedA portion of the chromosome is duplicated, resulting in extragenetic materialA single chromosome undergoes breakage and rearranges within itselfA portion of one chromosome has been deleted from its normal place and inserted into another chromosome  <response>: Inversion: Occur when there are two interstitial of a single chromosome breaks in and the segment reunites rearranged after a complete turnaround.Option A - Deletion e.g. Wolf-Hirschhorn syndrome, Jacobsen syndrome, also called the terminal IIq deletion disorder.Option B - Duplication - e.g. Charcot-Marie-Tooth disease type 1AOption D - InsertionOther structural disorders of chromosomes:Rings:A portion of a chromosome has broken off and formed a circle or ring.This can happen with or without loss of genetic material.Isochromosome:Formed by the mirror image copy of a chromosome segment including the centromere.Aneuploidy:Numerical disorder of chromosomes.Missing a chromosome from a pair is called monosomy and presence of more than two chromosomes of a pair trisomy, tetrasomy, etc. 