Klinefelter syndrome (KS), also known as 47,XXY, is a chromosome anomaly where a male has an extra X chromosome. [10] These complications commonly include infertility and small, poorly functioning testicles (if present).

2024年10月29日 · Klinefelter syndrome is a genetic condition that occurs before birth, but it often isn't diagnosed until adulthood. Klinefelter syndrome may affect testicular growth. This results in smaller testicles, which can lead to making less of the hormone testosterone.

Klinefelter syndrome, also known as XXY syndrome, is a condition in boys and men that’s caused by an extra X chromosome. It can affect physical and mental development.

XXY is a 2007 Argentine drama film written and directed by Lucía Puenzo and starring Ricardo Darín, Valeria Bertuccelli, Inés Efron and Martín Piroyansky.

2023年10月9日 · What is Klinefelter syndrome? Klinefelter syndrome is a genetic disorder in which males have an additional X chromosome in their genetic code. Most males have 46 chromosomes (packages of DNA). This includes one copy of an X chromosome and one copy of a Y chromosome (46, XY). People with Klinefelter …

Klinefelter syndrome, also called 47,XXY, is a chromosomal condition that affects male development. The signs and symptoms of Klinefelter syndrome vary. In some cases, the features are so mild that the condition is not diagnosed until puberty or adulthood.

2025年3月4日 · XXY syndrome, also known as Klinefelter syndrome (KS), is a genetic condition characterized by the presence of an extra X chromosome (47, XXY). Humans have 22 pairs of numbered chromosomes and one pair of sex chromosomes, resulting in a …

2022年2月27日 · People who are born male have one X and one Y chromosome, XY. These chromosomes give them traits such as a penis and testicles. People with Klinefelter syndrome are born with an extra X, causing...

2025年2月20日 · Usually, a female baby has 2 X chromosomes (XX) and a male has 1 X and 1 Y (XY). But in Klinefelter syndrome, a boy is born with an extra copy of the X chromosome (XXY). The X chromosome is not a "female" chromosome and is present in everyone. The presence of a Y chromosome denotes male sex.

Most men are born with a pair of XY chromosomes, while most females are born with pair of XX chromosomes. Klinefelter syndrome occurs when a male is born with an extra X chromosome. Thus a male with Klinefelter has XXY instead of the usual XY pair.