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Having a chromosome number that is not a multiple of the haploid number for the species.
A cell or an organism characterized by an aneuploid chromosome number.

an′eu·ploi′dy (-ploi′dē) n.
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Noun1.aneuploidy - an abnormality involving a chromosome number that is not an exact multiple of the haploid number (one chromosome set is incomplete)
abnormalcy, abnormality - an abnormal physical condition resulting from defective genes or developmental deficiencies
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References in periodicals archive ?
Tenders are invited for Supply of reagents and various materials for the performance of the non-invasive prenatal test of aneuploidies in maternal plasma in the genetics service of the university hospital october 12.
Prenatal clinical screening for fetal aneuploidies was revolutionized by the discovery that cell-free DNA (cfDNA) [3] of fetal/placental origin could be isolated from maternal plasma (1-3).
Early and accurate diagnosis of fetal aneuploidies is one of the cornerstones of fetal medicine.
The cell-free fetal DNA testing enables the parents to get information about general survivable fetal aneuploidies with a high accuracy and without any diagnostic procedure risk.
The advent of non-invasive prenatal testing (NIPT) for fetal chromosomal aneuploidies has transformed the typical obstetrics practice and the prenatal care experience for many pregnant women.
It is important during pretest counseling to explain that cfDNA cannot detect all significant chromosomal aneuploidies.
Fetal chromosomal abnormalities are the primary etiology of SM, especially aneuploidies.
Most (seven) had multiple aneuploidies, two had a single trisomy, and one had a single monosomy.
The largest type is microscopic structural variation, which can be detected by optical microscopy; these include aneuploidies and variation in chromosome size (Reich et al.
There are testing options for several additional common sex-related aneuploidies.
It reviews current methods and experiences, then provides an atlas of normal and abnormal human preimplantation development; micromanipulation and biopsy of polar bodies, blastomeres, and blastocytes; nuclear transfer techniques and the prospect for artificial gamete formation; and preimplantation diagnosis for aneuploidies, translocations, and single-gene disorders.