While the male baby is in the womb ... occurs when a male infant is born with an extra Y chromosome. Some symptoms include being tall and having a proportionally low weight, larger head dimensions ...

Josie, a rare male Calico polydactyl cat, seems to be very aware of the fact that his existence is a blessing to anyone who ...

Small supernumerary marker chromosomes (sSMCs) are extra chromosomes that are smaller than the standard chromosomes and can be found in various forms within an individual's genetic makeup.

But in some cases, mutations in genes on specific chromosomes are enough to cause a significant health condition. Trisomies result from errors in cell division that cause someone to have an extra ...

Despite having gone through this before with her first son, Yusof, and despite the doctors explaining that this was a gene ...

Could science help prevent birth defects? This National Birth Defects Awareness Month, here's the breakthrough every couple ...

The extra chromosome 13 disrupts normal development ... attention to this disorder was the death of an 11-month-old baby boy, the son of a pop star, due to Patau Syndrome. This case highlighted ...

Down syndrome is a chromosomal abnormality that adds an extra chromosome 21 to a baby's normal 46 chromosomes at birth. This extra chromosome causes delays in physical growth, adversely affects ...

I’ve felt every emotion under the sun." The 34-year-old called her baby news a "happy accident" and noted that she and Will—her relationship with whom she shared with the public in September ...

While the baby arrived several weeks early, with the palace originally announcing a due date in early spring, it's understood that the premature arrival was not unexpected. The proud parents ...