klinefelter syndrome is an consequence of what type
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- Klinefelter syndrome is a genetic disorder that affects males. Klinefelter syndrome occurs when a boy is born with one or more extra X chromosomes. Most males have one Y and one X chromosome. Having extra X chromosomes can cause a male to have some physical traits unusual for males. Many men with an extra X chromosome are not aware that they have it, and they lead normal lives. Klinefelter syndrome occurs in about 1 out of 1,000 males.
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- Although Klinefelter syndrome encompasses the specific clinical consequences observed in men with an XXY karyotype, there are variant karyotypes that can include additional X chromosomes (e.g., XXXY, XXXXY) or additional X and Y chromosomes (e.g., XXYY).
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Overview Klinefelter syndrome occurs as a result of a random error that causes a male to be born with an extra sex chromosome. It isn't an inherited condition. Humans have 46 chromosomes, including two sex chromosomes that determine a person's sex.
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- Klinefelter syndrome is a rare disorder of the sex chro-. mosomes. Patients with this syndrome have at least one. extra X chromosome in addition to the normal male. karyotype of 46, XY1. Among the clinical manifestations. of dermatological interest, leg ulcers occur in 13% of. cases of Klinefelter syndrome2.Wedescribeapatient. with Klinefelter syndrome who had had refractory leg ul-. cers for 19 years but did not show spontaneous aggrega-. bility of platelets or elevated activity of plasminogen acti-.
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Stickler Syndrome Stickler syndrome type III (STL3) has been described as the non-ocular form of Stickler syndrome, affecting the joints and hearing without involving the eyes. Stickler syndrome type III is caused by mutations of the COL11A2 gene on chromosome 6p21.3. The inheritance pattern is autosomal dominant.
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- Signs & Symptoms. Not all boys with Klinefelter syndrome will have noticeable symptoms. Other boys can have symptoms that are physically apparent or problems with speech, learning, and development. Babies with Klinefelter syndrome typically have weak muscles, reduced strength, and quiet personalities.
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Overview Klinefelter syndrome occurs as a result of a random error that causes a male to be born with an extra sex chromosome. Of the 46 human chromosomes, the two sex chromosomes determine a person's sex. In females, both sex chromosomes are X (written as XX). Males have an X and a Y sex chromosome (XY).
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-  Klinefelter syndrome is also called XXY syndrome and only affects males.  The condition comes about because instead of males having the usual one copy of. the X chromosome, they have two or more copies.  Klinefelter syndrome is thought to occur in 1 in every 500 or 1 in every 1000. males born in Australia each year.
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What are common symptoms of Klinefelter syndrome (KS)? Symptoms of Poly-X KS. Males with poly-X Klinefelter syndrome have more than one extra X chromosome, so their symptoms might be more pronounced than in males with KS. In childhood, they may also have seizures, crossed eyes, constipation, and recurrent ear infections. Poly-KS males might also show slight differences in other physical features.
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- Klinefelter syndrome is caused by an additional X chromosome in males (47,XXY). Clinical findings are nonspecific during childhood; thus, the diagnosis commonly is made during adolescence or adulthood in males who have small testes with hypergonadotropic hypogonadism and gynecomastia.
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- Men with Klinefelter syndrome may be at increased risk for the following: 1  Varicose veins and other problems with blood vessels. 2  Breast cancer and cancers of the blood, bone marrow, or lymph nodes. 3  Lung disease. 4  Autoimmune disorders, such as type 1 diabetes and lupus. 5  Belly fat, which can lead to other health problems.
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- He daughter cells contain half the number of. 1  1 pages. Homework Chapter 12 Questions 1.docx. Janice Sheridan BIOL 114-01 Tuesday November 22, 2016 Homework Chapter 12 Questions 1. 2  1 pages. Syndrome Chart.docx. Janice Sheridan Friday Nov. 4, 2016 BIOL-114L-03 Syndrome Karyotype Klinefelters Male. 3  1 pages. 9-30-16 Lab.docx.
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- Health Problems Associated with Klinefelter Syndrome. Klinefelter syndrome can lead to weak bones (osteoporosis), varicose veins, and autoimmune diseases (when the immune system acts against the body), such as lupus or rheumatoid arthritis. XXY males have an increased risk for breast cancer and cancers that affect blood, bone marrow, or lymph nodes, such as leukemia.
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Learning About Klinefelter Syndrome Klinefelter syndrome is associated with an increased risk for breast cancer, a rare tumor called extragonadal germ cell tumor, lung disease, varicose veins and osteoporosis. Men who have Klinefelter syndrome also have an increased risk for autoimmune disorders such as lupus, rheumatoid arthritis and Sjogren's syndrome.
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- Because not every male with an XXY pattern has all the symptoms of Klinefelter syndrome, it is common to use the term XXY male to describe these men, or XXY condition to describe the symptoms.
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Par Value of Common Stock People who own shares of common stock in a publicly traded entity or may be considering purchasing or issuing common stock from a small, private company need to understand its valuation. The actual common stock value and the par value of common stock inherently and fundamentally differ.The actual value of common stock is based on the market value of the business, whatever that market is. “Par value” is simply a legal term.o avoid this potential liability, most large companies issue stock at no par value or at a par value of $0.01 or less. However, a number of smaller corporations who intend to have a limited number of shareholders issue stock at $1.00 par value.
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- Klinefelter syndrome or Klinefelter's syndrome (KS) (/ˈklaɪnfɛltər/) also known as 47,XXY or XXY, is the set of symptoms that result from two or more X chromosome in males.The primary feature is sterility.ot to be confused with XYY syndrome. Klinefelter syndrome or Klinefelter's syndrome (KS) (/ˈklaɪnfɛltər/) also known as 47,XXY or XXY, is the set of symptoms that result from two or more X chromosome in males. The primary feature is sterility.
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What does a person with Klinefelter syndrome look like? There is a large degree of variation in phenotypic expression for almost every genotype among human beings. Klinefelter syndrome is no exception to this variation. Textbooks and web sites that describe Klinefelter tend to explain the most, shall we say, “dramatic” differences pretty much at one end of a spectrum of traits. [While I am here…Thank You, Billy Blanchard, for speaking up and posting your photo! Billy Blanchard's answer to What does a person with Klinefelter syndrome look like?]
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- About one of every 500 males born has Klinefelter's syndrome. If a male gamete containing the Y chromosome fertilizes an egg containing no X chromosome, then that embryo will fail to develop because it is essential that every human must have at least one X chromosome. There appears to be just too much important genetic information on the X chromosome not to have one.
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Overview Klinefelter syndrome occurs as a result of a random error that causes a male to be born with an extra sex chromosome. It isn't an inherited condition. Humans have 46 chromosomes, including two sex chromosomes that determine a person's sex. Females have two X sex chromosomes (XX). Males have an X and a Y sex chromosome (XY).
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Background Schwartz-Jampel syndrome (SJS) is a term now applied to 2 different inherited, autosomal recessive conditions, sometimes termed SJS type I and SJS type II.
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What is Klinefelter syndrome? Males normally have a total of 46 chromosomes; one X and one Y chromosome (46-XY). However, males with Klinefelter’s syndrome have an extra X chromosome (47-XXY) and therefore a total of 47 chromosomes. The presence of an extra X chromosome primarily affects the testes.
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- Klinefelter's syndrome (KS) is a condition that occurs in men who have an extra X chromosome. The syndrome can affect different stages of physical, language, and social development. The most common symptom is infertility.
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Klinefelter Syndrome Overview  (XXY syndrome, XXY trisomy) The most common chromosomal makeup for Klinefelter is XXY, meaning there is only one extra X chromosome in each cell; Males with Klinefelter can have more than two X chromosomes (i.e. XXXXY); an increased number of X chromosomes is associated with a more severe version of the syndrome with increased signs and symptoms
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Overview Females have two X chromosomes, or XX. Most males have one X chromosome and one Y chromosome, or XY. Males with Klinefelter syndrome are born with cells that have an extra X chromosome, or XXY. Klinefelter syndrome is a genetic condition, meaning people are born with it, but it's not passed down through families like some genetic diseases.
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- What is the cause of the chromosome aberration in Klinefelter's syndrome? Certain chromosome aberrations appear more frequently in children of elderly mothers and, to a certain extent, also elderly fathers, but this is not the case of Klinefelter's syndrome, and today nothing definite is known about causes leading to an increase in the number of X-chromosomes as found in Klinefelter's syndrome.