Monosomy X accounted for < 10% of all abnormalities ... Because advanced maternal age is associated with an increased risk of fetal chromosome abnormalities, the ages of the women in the two ...

No abnormality of chromosome number was present in any of ... and she was considered to be a triple-X female. Her husband had 1 endoreduplication, and of 79 cells examined, 2 per cent showed ...

An example of a balanced structural change is the Philadelphia chromosome translocation previously described. In that case, although genetic information was rearranged into an abnormal gene ...

X-linked dominant Inheritance is rare ... Chromosomal (cytogenetic) abnormalities Alterations of chromosomes that can be seen under a microscope Aneuploidy Loss of 1 of a pair of chromosomes ...

as well as skeletal abnormalities. Turner syndrome can also result in miscarriage or stillbirth. Klinefelter syndrome, also known as XXY syndrome, is the result of an extra X chromosome in people ...

The X and Y chromosomes ... Created with Sketch. This rare sex chromosome abnormality, also referred to as Jacob’s syndrome, occurs when a male infant is born with an extra Y chromosome.

A new study reveals that the maternal X chromosome may accelerate brain ageing and increase Alzheimer's risk. Experiments on ...

Researchers aim to continue studying the role of the X chromosome in brain aging, and whether it can explain people’s risk of ...

The study, published today in Nature, discovered that at least 3% of normal cells from breast tissue in 49 healthy women contain a gain or loss of chromosomes, a condition known as aneuploidy, and ...

The goal of prenatal cytogenetic testing is to provide reassurance to the couple seeking testing for their pregnancy, identify chromosome abnormalities in the fetus, if present, and provide ...

On the rare occasion that errors do occur, cells with abnormal chromosome numbers are rapidly cleared. But cancer is different. Tumor cells are remarkably tolerant of chromosomal abnormalities, and ...

Researchers at the Crick have uncovered which genes on the Y chromosome regulate the development of sperm and impact ...