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What is a chromosome abnormality, disorder, anomaly, aberration, or mutation? How do chromosomal abnormalities affect people? This video will explain and show you some common chromosome variations such as deletion, duplication, trisomy, monosomy, translocation, ring chromosome and more. This video explains missing, extra, or irregular portion of chromosomal DNA and gives some resources for more information. Recommended children's book: Chromosome Kids Like Me by Annette Fournier available on Amazon