Kleinfelter's Syndrome Research Paper

One type of abnormality is the XYY chromosomal male. The XYY male receives two Y chromosomes from his father rather than one. Approximately 1 in 1,000 newborn males in the general population has this genetic composition.11 Initial studies done in the 1960s found the frequency of XYY chromosomes to be about 20 times greater than normal XY chromosomes among inmates in maximum-security state hospitals” (Adler et al.,

5. Males transmit their Y chromosome to their sons. This means that sons will not inherit an X-linked recessive condition from their father.

The patient whose chromosomes are organized on the Karyotype Worksheet #1, is a normal female as indicated by her XX sex chromosomes, with a total number of 46 chromosomes and her karyotype doesn’t exhibit any aneuploidy or structural errors.

Normally males have 46 chromosomes which include one X and one Y chromosomes, but males with XYY Syndrome have 47 chromosomes, two of which are Y chromosomes. Most cases of XYY Syndrome occur before conception due to a cell division error in the sperm. Rarely does the cell division error happen after conception.

It is not a very common disorder, but one factor that can contribute to this condition is when a woman over the age of 35 gives birth. As a woman ages so do her eggs. The genetic information inside the egg has a greater chance of being altered. Mutations and nondisjunction are more likely to occur in older eggs. Doctors have found that this disorder is really caused by random chance of a problem that occurs during meiosis. Parents of a Klinefelter boy are not to blame for their son having this condition.

Klinefelter syndrome is a genetic condition that results when a boy is born with an extra copy of the X chromosome. Klinefelter syndrome is a common genetic condition affecting only males. It mostly affects testicular growth, and this can result in smaller than normal testicles. This can lead to lower production of the sex hormone testosterone. Klinefelter syndrome may also cause reduced muscle mass, reduced body and facial hair, and enlarged breast tissue. The effects of Klinefelter syndrome affect every person differently, and not everyone with it develops the same signs and symptoms. Klinefelter syndrome often isn't diagnosed until adulthood. Most men with Klinefelter syndrome produce little or no sperm. But assisted reproductive procedures

Kinefelter syndrome is a genetic condition that occurs in men as a result of an extra chromosome. The most common symptom is infertility. Humans have 46 chromosomes, which contains all of a person's DNA and genes. Two of which that determines a persons gender. Kinefelter syndrome is the result of one extra X written as XXY. Some of the cells in a male's body have an additional x chromosome. It is found in about 1 out of every 500-1,000 newborn males. The additional sex chromosome results from a random error during the formation of the egg or sperm. Women who have pregnancies after the age of 35 have a slightly increased chance of having a boy with this syndrome. Males who have Kinefelter syndrome may have the following symptoms: small firm

The characteristics of and X-linked chromosome are that they are never passed from a father to his son, and that males get it more often than females.

Klinefelter's Syndrome is a genetic disorder that only affects men. Those affected are born with an extra X chromosome (Belts & Frey, 2006). In 1942, Dr. Harry Klinefelter released a study concerning nine men who had little to no facial hair, enlarged breasts, small testicles, and were unable to produce sperm. The name of this syndrome originated from Dr. Klinefelter's name (Kenny & Henderson, 2015). This disease is often abbreviated as KS or referred to as 47 XXY. It is referred to as 47 XXY because of the extra chromosome in patients (Schoenstadt, 2016).

Klinefelter Syndrome is the presence of an extra X chromosome in the male. Klinefelter disease is the most common chromosomal malfunction. Klinefelter Syndrome Is a fault in cell division when the reproductive cell of a parent is being designed. (Kids Health 2015) Klinefelter Syndrome occurs in 1 out of 1000 males. (Dennis O’Neal, 2013)

When a child is born you're either a boy or a girl . girls get a X chromosome from your mom and dad . a boy gets an X chromosome from mom and Y from your dad . if a girl gets that bad X chromosome from the mom and a good one from the dad it will be ok but if you get a bad one from mom then a Y-chromosome from

This is when a male is born with more then one X chromosome, and can be be found in varying amounts. Klinefelter's patients are fine until they reach puberty, which is where there testosterone levels decrease extremely. This can lead to sterilization, learning disabilities and emotional insecurities. There is no cure, but the children can see a speech therapists, as well as get monthly testosterone shots to development more normally. PKU is a genetic disease that is a rare metabolic disorder caused by a phenylalanine hydroxylase deficiency. It is an autosomal recessive disorder that is incurable, causes mental incapacity. There is no way to treat the patient completely, but they can stay on a specialized diet to prevent an increase in the mental instability. It effects the nervous systems and its creation of nerve cells and neurotransmitters in the brain. PKU varies in up to 400 types and affect every one in about 15,000 a year in the United States. The signs and symptoms are not relevant until about one year old. The most popular to test for PKU is using blood from a babies hell and the Guthrie bacterial inhibition assay. PKU is confirmed by the presence of bacteria growing on high concentration of PAH. Mothers must be extremely careful, because if too much PKU is in their diet they can cause brith disorders such as

Dr. Klinefelter’s hypothesis was that decreased levels of inhibin or the absence of inhibin the feedback inhibition of pituitary gonadotropins could not occur which was causing the follicle stimulating hormone or FSH levels to increase. It was 14 years later before Dr. Klinefelter’s hypothesis was confirmed in 1956 by Dr. Joe Hin Tjio and his peer Dr. Albert Lavan. Within their research, they discovered other factors that came into play in the men that had Klinefelter’s Syndrome and it was this discovery that made them different from what we consider normal males. Dr. Tjio and Dr. Lavan found that using buccal mucosal cells that humans had 23 sets of chromosomes which accounted for 46 chromosomes in the men’s bodies. This was different than the original thought of the men having 48 chromosomes. It was their discovery of cytogenetics that led the doctors to uncover the fact that the men with Klinefelter’s syndrome had an extra sex chromosome which made the total of chromosomes these men had 47 instead of

In the U.S. alone, 1 in 200,000 individuals is affected by Werner’s syndrome. Werner’s syndrome is often known as “adult progeria” as it causes a sudden and rapidly aged appearance in affected individuals, typically occurring in their twenties. The affected individuals may start to have graying and loss of hair; a hoarse voice; and thin,hardened skin. In addition to this, early in life, the affected individuals may develop disorders that are associated with aging, such as skin ulcers, diminished fertility, thinning of bones, atherosclerosis, and cloudy cataracts in both eyes. They are also more susceptible to cancers, cardiovascular diseases, and diabetes. Because of these characteristics and effects, people with Werner's syndrome tend to live

The XXY syndrome, most commonly known as Klinefelter syndrome (KS), only affects males of all ages. This syndrome occurs when there is a random genetic error after conception and is not curable, however treatment can help.All females have XX chromosome and all males have XY chromosomes. Unlike the normal XY type that all males have, males affected have an additional X chromosome which results into many symptoms such as impaired spermatogenesis, low testosterone, and male hypogonadism. Since Klinefelter syndrome is related to the sex chromosomes of males, it is a sex link trait.