What syndrome has a cytogenetic notation 47,XXY?
What syndrome has a cytogenetic notation 47,XXY?
Klinefelter syndrome (KS) is a genetic condition where there’s an extra X chromosome present in a male’s genetic code. Instead of having a total of 46 chromosomes, they have 47 — with two copies of the X chromosome and one copy of the Y chromosome (47,XXY).
Is 47,XXY a trisomy?
Klinefelter syndrome (KS), also known as 47,XXY, is a syndrome where a male has an additional copy of the X chromosome. The primary features are infertility and small, poorly functioning testicles. Often, symptoms are subtle and subjects do not realize they are affected….
| Klinefelter syndrome | |
|---|---|
| Specialty | Medical genetics |
Does Klinefelter syndrome have 47 chromosomes?
Most often, boys and men with Klinefelter syndrome have the usual X and Y chromosomes, plus one extra X chromosome, for a total of 47 chromosomes (47,XXY).
Can females have Klinefelter syndrome?
Klinefelter syndrome affects males only; females cannot have it. Klinefelter syndrome results from a genetic abnormality in which males have an extra copy of the X chromosome.
Are XXY male or female?
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.
What is an XXY person?
Klinefelter syndrome (sometimes called Klinefelter’s, KS or XXY) is where boys and men are born with an extra X chromosome. Chromosomes are packages of genes found in every cell in the body. There are 2 types of chromosome, called the sex chromosomes, that determine the genetic sex of a baby.
CAN XXY get pregnant?
It is possible that an XXY male could get a woman pregnant naturally. Although sperm are found in more than 50% of men with KS3, low sperm production could make conception very difficult.
What causes XXY syndrome?
Klinefelter syndrome can be caused by: One extra copy of the X chromosome in each cell (XXY), the most common cause. An extra X chromosome in some of the cells (mosaic Klinefelter syndrome), with fewer symptoms. More than one extra copy of the X chromosome, which is rare and results in a severe form.
What does XXY look like?
As teens, XXY males may have larger breasts, weaker bones, and a lower energy level than other boys. XXY adult males look similar to males without the condition, although they are often taller and may have autoimmune disorders, breast cancer, vein diseases, osteoporosis, and tooth decay.
