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]

XYY syndrome is a genetic condition found in males only. About 1 in 1,000 boys have it. Boys with XYY syndrome — also known as 47,XYY — might be taller than other boys. Other symptoms can include problems with spoken language and processing spoken words, coordination problems, weaker muscles, hand tremors, and behavioral problems.

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...

2023年4月21日 · XYY syndrome (Jacobs syndrome or 47,XYY) is a genetic condition that occurs when a person assigned male at birth is born with an extra copy of the Y chromosome in some or all of their cells. Males are usually born with one X and one Y chromosome.

一对 X 和 Y 染色体 (XY) 决定性别为男性，一对 X 和 X 染色体 (XX) 决定性别为女性。 每 1,000 名男孩中约有 1 名出生时就有 XYY 综合征。 患有 XYY 综合征的男孩往往很高，并在语言方面有困难。 与家庭中的其他成员相比，智商 (IQ) 常轻度降低。 患者可能会出现学习障碍、注意力缺陷／多动症和轻微的品行障碍。 XYY 综合征曾被认为有暴力及犯罪倾向，但此理论已经被认为错误。 Test your Knowledge Take a Quiz! XYY 综合征——从默沙东诊疗手册 （大众版）了解病 …

XYY syndrome is a genetic condition found in males only. About 1 in 1,000 boys have it. Boys with XYY syndrome — also known as 47,XYY — might be taller than other boys. Other symptoms can include problems with spoken language and processing spoken words, coordination problems, weaker muscles, hand tremors, and behavioral problems.

2023年2月13日 · XYY syndrome is a genetic condition that occurs when a male is born with an extra Y chromosome. Instead of having one X and one Y sex chromosome, those with XYY syndrome have one X and two Y ...

The sex chromosomes determine whether a fetus becomes male or female. A pair of X and Y chromosomes (XY) results in a male, and a pair of X and X chromosomes (XX) results in a female. About 1 in every 1,000 boys is born with XYY syndrome. Boys with XYY syndrome tend to be tall and have difficulties with language.

2024年7月31日 · XYY综合征是常见的男性性染色体异常之一，并不罕见。 大约1000名新生男婴中就有一个是47,XYY核型。 但是，由于XYY综合征个体大多无明显症状，一般情况下不会检测染色体，所以大约85%的XYY综合征未被诊断出来。

XYY染色体比XY染色体多了一条Y，很明显，这属于不正常的情况。 而 XYY染色体也被称为“ 超雄综合征 ”，相较于正常的XY染色体的正常人，这些超雄综合征的人， 身材会比较高大，在性格上也会出现某种缺陷，比如，性格暴躁、具有较强的攻击性等等。