XYY syndrome, also known as Jacobs syndrome, is an aneuploid genetic condition in which a male has an extra Y chromosome. [1] There are usually few symptoms. [2] These may include being taller than average and an increased risk of learning disabilities. [1][2] The person is generally otherwise normal, including typical rates of fertility. [1]

2024年9月10日 · Jacobs syndrome, also known as 47,XYY syndrome, is a rare genetic condition that occurs in about 1 out of 1000 male children; this condition belongs to a group of conditions known as "sex chromosome trisomies", with Klinefelter syndrome being …

2024年12月5日 · 47,XYY syndrome (Jacobs syndrome) means you have an extra Y chromosome. It often goes undiagnosed due to a lack of obvious symptoms. But the syndrome is associated with an increased risk of certain diagnoses and physical traits. Treatment mainly addresses any physical, mental health or behavioral issues that develop.

2017年6月7日 · XYY syndrome is a genetic condition that occurs when a male has an extra copy of the Y chromosome in each of their cells (XYY). Sometimes, this mutation is only present in some cells. Males...

2012年10月3日 · XYY syndrome is a rare chromosomal disorder caused by the presence of an extra Y chromosome. Normally, males have 46 chromosomes including one X and one Y chromosome.

47,XYY syndrome is caused by genetic mutations, also known as pathogenic variants. Genetic mutations can be hereditary, when parents pass them down to their children, or they may occur randomly when cells are dividing.

47,XYY syndrome is characterized by an extra copy of the Y chromosome in each of a male's cells. Explore symptoms, inheritance, genetics of this condition.

2024年9月10日 · Jacobs syndrome, also known as 47,XYY syndrome, is a rare genetic condition that occurs in about 1 out of 1000 male children; this condition belongs to a group of conditions known as "sex chromosome trisomies", with Klinefelter syndrome being the more common type.

2025年2月4日 · XYY syndrome, also known as Jacobs syndrome, is a chromosomal disorder characterized by the presence of an extra Y chromosome (47, XYY). Typically, genetic males have one X and one Y chromosome, but individuals …

XYY syndrome is a sex chromosome abnormality in which boys are born with two Y chromosomes and one X chromosome. Chromosomes are structures within cells that contain …