= Chromosomal inversion
A <chromosomal inversion> reverses the orientation of a <chromosome> segment relative to its flanking sequence. Breakage and rejoining can change <gene regulation> at the boundaries even when the segment retains the same <genes>. In an individual carrying different orientations, crossing over within the inverted region can produce unbalanced products, reducing recovery of recombinant descendants. An inversion therefore affects inheritance as well as the visual order of chromosomal markers. <Talking Glossary of Genomic and Genetic Terms by NHGRI>[Inversion entry]{ref}
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