What are the different arrangement of chromosomes?

Various chromosomal rearrangements comprise different classes of events like deletions, duplications, inversions and translocations.

• Deletion: Deletion occurs when part of the chromosome, small or large, is deleted along a chromosome.
• Duplication: Duplications occur when part of the chromosome is abnormally copied or duplicated.
• Inversion: Inversion is the breakdown and rejoining of a part of a chromosome or chromosomal segment between nonhomologous chromosomes.
• Translocation: Translocation occurs when a small or large piece of chromosome breaks off and attaches to another chromosome. It is an exchange of chromosome segments between nonhomologous chromosomes.

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Updated on: 20-Mar-2023

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