Here's how chromosomal abnormalities work: Your body is made up of cells. In the middle of each cell is a nucleus, and inside of the nucleus are chromosomes. Chromosomes are important because they ...

Cells that were obviously disrupted or in which the chromosomes were poorly spread were not counted. Analysis of 34 cells demonstrated an extra acrocentric chromosome in Group 13–15 (Fig. 4).

Abnormal Karyotypes and Subtypes of 13–15 Complements (Type C). An assumed total chromosome number of 45 was found in the maternal grandfather, 2 great-aunts, 1 aunt and the index patient (Table 1).

Chromosome 13 abnormalities. Increasing evidence supports the concept that abnormalities of chromosome 13 are associated with a shortened survival in patients with multiple myeloma. [19] ...

The group cites evidence that, for singleton pregnancies, the detection rate of NIPS for Trisomy 21 is 98.8%, for Trisomy 18 is 98.83%, for Trisomy 13 is 92.85% and for sex chromosome ...

A routine genetic screen using cell-free DNA—a highly accurate blood test—suggested her fetus had an extra copy of chromosome 13 (Patau syndrome) and only one copy of chromosome 18.

Microarray-Based Prenatal Diagnosis for the Identification of Fetal Chromosome Abnormalities Lisa G Shaffer; Jill A Rosenfeld Disclosures Expert Rev Mol Diagn. 2013;13 (6):601-611.

Each chromosome has a short and a long arm. Chromosomes 13, 14, 15, 21, and 22 have a very short arm, which doesn’t contain any unique genetic material, and are called acrocentric chromosomes.

Original Article Published: 17 January 2013 Identification of a lupus-susceptibility locus leading to impaired clearance of apoptotic debris on New Zealand Black chromosome 13 E Pau, C Loh, G E S ...