Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example a human cell having 45 or 47 chromosomes instead of the usual 46...

of aneuploidy is increased by tobacco smoking, and occupational exposure to benzene, insecticides, and perfluorinated compounds. Increased aneuploidy is...

heterozygotes) for the condition. Autosomal aneuploidy can also result in disease conditions. Aneuploidy of autosomes is not well tolerated and usually...

syndrome and Turner syndrome. An abnormal number of chromosomes is known as aneuploidy, and occurs when an individual is either missing a chromosome from a pair...

called aneuploidy. Aneuploidy is very common in humans, with around 20-40% of all conceptions making a embryo displaying aneuploidy. Most aneuploidy events...

Trisomic rescue (also known as trisomy rescue or trisomy zygote rescue) is a genetic phenomenon in which a fertilized ovum containing three copies of a...

girls and women with trisomy X have no family histories of chromosome aneuploidy. Advanced maternal age is mildly associated with trisomy X. Women with...

Nondisjunction results in daughter cells with abnormal chromosome numbers (aneuploidy). Calvin Bridges and Thomas Hunt Morgan are credited with discovering...

particular chromosome, instead of the normal two. A trisomy is a type of aneuploidy (an abnormal number of chromosomes). Most organisms that reproduce sexually...

syndrome (PKS), also termed tetrasomy 12p mosaicism or the Pallister mosaic aneuploidy syndrome, is an extremely rare and severe genetic disorder. PKS is due...

plasma has led to new methods for the determination of fetal chromosomal aneuploidies. This type of testing is referred to as non-invasive prenatal testing...

are not specific to pentasomy X, but rather common to sex chromosome aneuploidies in general and in particular show a strong resemblance to the male counterpart...

of aneuploidy is increased by tobacco smoking, and occupational exposure to benzene, insecticides, and perfluorinated compounds. Increased aneuploidy of...

Chromosomes in Down syndrome, the most common human condition due to aneuploidy. There are three chromosomes 21 (in the last row)....

chromosomes rather than the usual 46. Sex chromosome aneuploidies are the most frequent form of aneuploidy in humans. Though a 48-chromosome complement involving...

complement of 46 chromosomes: 2 sets of 23 chromosomes. Euploidy and aneuploidy describe having a number of chromosomes that is an exact multiple of the...

A number of facial and musculoskeletal anomalies are common to all aneuploidies of the sex chromosomes, including X chromosome polysomy such as tetrasomy...

failure to maintain euploidy (the correct number of chromosomes) leading to aneuploidy (incorrect number of chromosomes). In other words, the daughter cells...

have normal fertility. In contrast to the other common sex chromosome aneuploidies—47,XXX and 47,XXY (Klinefelter syndrome)—the average of the IQ scores...

determines male sexual development. Sex chromosome aneuploidies are the most frequent form of aneuploidy in humans. Though a 48-chromosome complement involving...

Klinefelter syndrome and 48,XXXY, but they are usually much more severe. Aneuploidy is often fatal, but there is "X-inactivation", where the effect of the...

dissociation of the chromatids can lead to chromosome missegregation and aneuploidy in the daughter cells. Thus, the job of the spindle checkpoint is to prevent...

palaeopolyploidy for the investigation of ancient karyotype duplications. Aneuploidy is the condition in which the chromosome number in the cells is not the...

with two copies of each chromosome again. Errors in meiosis resulting in aneuploidy (an abnormal number of chromosomes) are the leading known cause of miscarriage...

duplications include ectopic recombination, retrotransposition event, aneuploidy, polyploidy, and replication slippage. Duplications arise from an event...

harming the fetus. The use of ultrasound and biochemical markers to detect aneuploidies is usually done in the first and / or second trimester of pregnancy....

species that have more or fewer chromosomes than their relatives due to aneuploidy. Pseudoendemics are taxa that have possibly recently evolved from a mutation...

In humans, barring intersex conditions causing aneuploidy and other unusual states, it is the male that is heterogametic, with XY sex chromosomes....

Monosomy is a form of aneuploidy with the presence of only one chromosome from a pair. Partial monosomy occurs when a portion of one chromosome in a pair...

Gynecologists recommend that all women be offered prenatal assessment for aneuploidy, or the presence of an abnormal number of chromosomes, by either genetic...