Despite advancements in prenatal genetic screening, current medical technology cannot identify all genetic conditions in ...

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 ...

Babies who are born with Trisomy 13 have a limited life expectancy. The word ‘trisomy’ indicates that a person has 3 copies of a particular chromosome rather than 2. As with Trisomy 18, Trisomy 13 ...

or Trisomy 21, which results from an extra copy of chromosome 21. "It is simply impossible to overstate the impact Dr. Lo's pair of discoveries have had on the health of moms and babies over the ...

Here, the extra chromosome aligns itself with the 21st pair of chromosomes (hence Trisomy 21). Although we do know that Trisomy 21 is not hereditary, we do not know what causes this particular cell ...

Two new studies have revealed why some cats are orange — an enduring enigma of genetics, until now. Garfield, star of the eponymous comic strip created by Jim Davis in 1978, is, like many of the ...

On November 22 in Nature Genetics, they reported that the two forms of AD had much in common, but because DSAD is more aggressive, its signatures were sharper. First spatial and single-cell ...

Wolf-Hirschhorn is a rare genetic disorder that your baby gets when part of chromosome 4 is deleted. It happens when cells divide abnormally during reproduction. When any part of a chromosome is ...

People who are born female usually have two X chromosomes. Triple X syndrome (also called trisomy X syndrome, XXX syndrome, or 47,XXX) is a rare genetic condition where females inherit an extra X ...

This valuable study addresses the potential roles of the master regulator of X chromosome inactivation, the Xist long non-coding RNA, in the regulation of autosomal genes. Using data from mouse cells, ...

Note the potential formation of monosomy or trisomy. Once fertilization occurs, the gamete with 24 chromosomes forms a zygote with 47 chromosomes (a trisomy with an extra copy of 1 chromosome).