47,XYY syndrome - MedlinePlus
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.
XYY syndrome - Wikipedia
It is estimated that only 15–20% of children with 47,XYY syndrome are ever diagnosed. Of these, approximately 30% are diagnosed prenatally. For the rest of those diagnosed after birth, around half are diagnosed during childhood or adolescence after developmental delays are observed.
Jacobs Syndrome - StatPearls - NCBI Bookshelf - National …
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.
XYY Syndrome: Causes, Symptoms, and More - Healthline
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...
XYY Syndrome | Male Chromosome Disorder - National …
2012年10月3日 · Males with XYY syndrome have 47 chromosomes, two of which are Y chromosomes. Most cases of XYY syndrome are due to a cell division error in the sperm prior to conception. Rarely, the cell division error occurs after conception resulting in a mosiac of cells with 46 chromosomes and 47 chromosomes.
47,XYY syndrome | About the Disease | GARD - Genetic and Rare …
47, XYY syndrome is a syndrome (group of signs and symptoms) that affects males. For some males with this syndrome, signs and symptoms are barely noticeable. For others, signs and symptoms may include learning disabilities, speech delay, low muscle tone (hypotonia), and being taller than expected. 47, XYY syndrome is caused by having an extra ...
XYY Syndrome: What Is It, Causes, Diagnosis, and More | Osmosis
2024年6月7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 …
What Is XYY Syndrome? Symptoms, Causes, Diagnosis, Treatment…
2023年2月13日 · Also known as Jacobs syndrome, XYY karyotype, or YY syndrome, it is a rare genetic condition that occurs when a male is born with an extra Y chromosome.
47,XYY Syndrome - 47,XYY Syndrome - The Merck Manuals
47,XYY syndrome is the presence of two Y chromosomes and one X chromosome in a phenotypic male. (See also Overview of Chromosomal Abnormalities and see Overview of Sex Chromosome Abnormalities.) The 47,XYY syndrome occurs in …
47,XYY Syndrome - 47,XYY Syndrome - MSD Manual …
47,XYY syndrome is the presence of two Y chromosomes and one X chromosome in a phenotypic male. (See also Overview of Chromosomal Abnormalities and see Overview of Sex Chromosome Abnormalities.) The 47,XYY syndrome occurs in …
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