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Chromosome abnormality is the condition in a cell or organism where the number of chromosomes or the structure of any chromosome differs from the normal karyotype. When the variant genotype is not associated with abnormal phenotypes (traits), chromosomal abnormalities are referred to as karyotype variation or structural genome variation.
Genomic analysis of products of conception collected after spontaneous pregnancy loss in the first trimester reveals previously undetected chromosomal aberrations and a higher degree of mosaic chromosomal imbalances.
Girish et al. designed a method to genetically remove extra chromosomes from human aneuploid cancer cells to show that they are important for malignant growth and not just a bystander.