The XYY Syndrome Essay, Research Paper
subject = Intro to Biology
title = XYY Syndrome
papers = XYY Males
XYY
Syndrome is a rare genetic disorder which affects males due to an extra Y
chromosome.
Healthy males have 46 chromosomes including one X and one Y chromosome. Men
with XYY syndrome have 47 chromosomes, two of which are Y chromosomes. It
is not known why the extra Y chromosome occurs. The disorder is present at
birth and is estimated to occur in one out of every one thousand live births.
In very rare instances, the syndrome has been passed from father to son, but
in most cases heredity cannot be established.
The characteristics of
XYY syndrome are often very subtle and do not indicate and serious chromosomal
disorder. Therefore, males with this condition are frequently undiagnosed
or misdiagnosed. The primary symptoms include tall or very tall height which
becomes evident at the age of five or six, and severe cystic acne during adolescence.
Lower
than average intelligence and/or behavioral problems, such as an explosive
temper, aggressive or defiant actions, or sometimes antisocial behavior are
other symptoms. Some individuals with this disorder may also have language
difficulties or psychosexual problems. XYY Syndrome is often undiagnosed until
tests for other medical reasons are performed. Other than being unusually
tall and/or having behavioral problems, in many cases, these boys or men appear
normal.
Physical characteristics of XYY Syndrome may include an exceptionally
long head with a slightly protrusive forehead, long hands and feet, long ears,
mild indentation of the breastbone, and/or large teeth. Poor chest and shoulder
muscle development is also common. Even though males with this syndrome are
large, they tend to be weak and uncoordinated. Some may have a fine intentional
tremor, such as shaking hands when the try to drink a glass of water. Occasionally,
a bony formation across the joints in the two bones of the forearm resulting
in the stiffening of the affected joints may occur. Other occasional symptoms
are undescended testicles, a small penis, or an opening located on the underside
of the penis.
For a long time it was thought that XYY Syndrome individuals
had aggressive tendencies often associated with criminal behavior due to the
extra Y chromosome. Epidemiological studies suggest that one out of every
35 institutionalized male juvenile delinquents has XYY Syndrome. However,
it is now believed by some researchers that this behavior is not due to the
extra Y chromosome, but rather to the lower than average intelligence and education
levels of these men. More research is needed to understand the role of this
chromosomal abnormality on behavior.
Другие работы по теме:
Aids And Teens Essay Research Paper AIDS
Aids And Teens Essay, Research Paper AIDS and TeensKids and young adults are the fastest rising group for HIV transmission today. People are beginning to experiment sexually contact at a young age. Unsafe sex is both stupid anddeadly. By deadly I mean the Human Immunodeficiency Virus, the virus that causes AIDS(Acquired Immune Deficiency Syndrome).
Art Work Essay Research Paper Don
Art Work Essay, Research Paper Don’t exist exactly definition for a work of art. Work of art is something made by a person. Hence sunsets beautiful trees, ”found” natural objects such as grained driftwood, “painting” by insects or birds and a host of other natural phenomena are not considered works of art, despite their beauty.
Cri Du Chat Syndrome Essay Research Paper
Cri Du Chat Syndrome (Cry of the Cat) By Chase Kuntz The Cri du Chat syndrome is the result of the deletion of segment 5p15.2 in the short arm of chromosome number five. No one is quite sure on how this deletion occurs, or even why it occurs. This deletion leads to deformities and mental retardation in the child.
Philosophy On Life Essay Research Paper My
Philosophy On Life. Essay, Research Paper My philosophy on life begins with the subject of death, which infact terrifies most people. Many people believe after you die you go to ‘heaven’ or ‘hell’, my opinion is similar but in a way different. I believe that there is certainly an afterlife but not as limited to those two fictional places.
Legislation Essay Research Paper What then is
Legislation Essay, Research Paper What, then, is legislation? It is an assumption by one man, or body ofmen, of absolute, irresponsible dominion over all other men whom theycan subject to their power. It is an assumption by one man, or body ofmen, of a right to subject all other men to their will and theirservice.
Down Syndrome Essay Research Paper Down Syndrome
Down Syndrome Essay, Research Paper Down Syndrome or Trisomy 21 as it is also commonly known, is a genetic condition that for many years has been shrouded in fear, darkness & shame. There is absoultely nothing to fear, and there never should be any feelings of shame, it is not the persons fault. The only darkness associated with down syndrome is the ignorance many people have towards it.
Down Syndrome Essay Research Paper Sometimes when
Down Syndrome Essay, Research Paper Sometimes when meiosis ( the division of reproductive cells ) occurs, chromosomes may be lost, left behind, or too many may be passed on, resulting in the birth of a child with a genetic or congenital defect or disease. One of the most common of these genetic disorders is Down syndrome.
Meiosis Essay Research Paper State that meiosis
Meiosis Essay, Research Paper State that meiosis is a reduction division in terms of diploid and haploid numbers of chromosomes Outline the process of meiosis including pairing of chromosomes followed by
My Writers Profile Essay Research Paper My
My Writer?s Profile Essay, Research Paper My writer?s profile starts first with a subject. I sometimes go to newsmax or cnn to get the latest and best news from around the world. Newsmax has by far the best reports from around the world, they have a lot of inside sources in many countries and things that are going on in the world that you would never hear about anywhere else.
Turner
’s Syndrome Essay, Research Paper Turner?s Syndrome Turner?s Syndrome is a common disease in females that affects many body systems. It affects about out of 2,000 females. This genetic
Turner Essay Research Paper Turner
Turner Essay, Research Paper Turner’s Syndrome A relatively uncommon human sex-chromosome disorder. Males very rarely contract this disease. Its occurrence rate in females is about one per
A Dream Shattered Essay Research Paper As
A Dream Shattered Essay, Research Paper As children, littlegirls have one common dream: to have children. Playing house with their friends and playing with their babydolls have become the most frequent games played by little girls in hopes of one day being a mom themselves. At that age, even at older ages, girls do not think of the consequences that come with getting pregnant and having a baby.
Poetics Essay Research Paper The subject of
Poetics Essay, Research Paper The subject of the Poetics is poetry, including epic poetry, tragedy and comedy. Unlike Plato, Aristotle regards poetry as a techne. The practice of poetry is governed by rules; these rules can be formulated and taught. Poetry is rationally comprehensible.
Fetal Alcohol Syndrome Essay Research Paper It
Fetal Alcohol Syndrome Essay, Research Paper It can take as little as one ounce of alcohol for a child to suffer from Fetal Alcohol Syndrome. This is the leading cause of mental retardation in the Western World. It is now widely accepted by nmedical authorities and researchers that women who drink during pregnancy can adversely affect the development of their unborn infant.
Hanta Pulmonary Syndrome Essay Research Paper Hanta
Hanta Pulmonary Syndrome Essay, Research Paper Hanta Pulmonary Syndrome The Hanta Pulmonary Syndrome (HPS) is a disease that has emerged in North America only recently. Its source is a virus carried by rodents, particularly the deer mouse, and transmitted by direct contact with their droppings. Symptoms appear within the one to six weeks of initial exposure, and initially include muscle aches, fever, and other flu-like symptoms.
Werner Syndrome Essay Research Paper Psychology 261Instructor
Werner Syndrome Essay, Research Paper Psychology 261 Instructor: Ms Anne Thomas, M.A. October 5, 2000 Page 1 Imagine in your early adolescents being diagnosed with a disease that increases your aging. Doctors tell you that there is no known cure and that you will die by the age of fifty. There is a disease that increases your aging, that disease is known as Werner Syndrome.
Motherless Brooklyn Essay Research Paper Motherless Brooklyn
Motherless Brooklyn Essay, Research Paper Motherless Brooklyn is about crime-scene detective Lionel Essrog. Lionel becomes diagnosed with Tourette?s syndrome. He?s unable to refrain from shouting obscene words to people who pass him on the street or he compulsively tabs people on the shoulder as he passes.
Std Presentation Essay Research Paper STD PresentationI
Std Presentation Essay, Research Paper STD Presentation I was impressed about how well the subject of STD’s was presented to us, because it actually had a positive effect on me. It made me realize that I need to be extra careful, especially here at college because of the high STD rates. I didn’t know how common Aids has become over the past few years, the nationwide figure is 1 in 500 people are infected which seems like a lot.
Aicardi Syndrom Essay Research Paper Aicardi syndrome
Aicardi Syndrom Essay, Research Paper Aicardi syndrome is a rare genetic disorder identified by the French Neurologist, Dr. Jean Aicardi in 1965. This syndrome is defined as a “rare disorder”, meaning that there are less than 20,000 cases worldwide. This syndrome is an X-linked dominant disorder that has been mainly observed in females and is presumed to be lethal in XY males.
Lesch Nyon Syndrom Essay Research Paper BiologyLesch
Lesch Nyon Syndrom Essay, Research Paper Biology Lesch Nyhan Syndrome Lesch Nyhan Syndrome (LNS) is a rare, genetic disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase or HRPT. LNS is characterized by self-mutilating habits such as; lip and finger biting and/or head banging.
Domestic Violence Essay Research Paper Domestic ViolenceBy
Domestic Violence Essay, Research Paper Domestic Violence By: Kris Hudson Each day, the statistics on domestic violence get more and more horrifying. A woman is beaten every 15 seconds, 22 to 35 percent of emergency room visits from women are because of ongoing partner abuse, 1 in 4 pregnant women have a history of partner violence, and 63 percent of young men between the ages of 11 and 20 are in jail for murdering their mothers abuser.
Fetal Alcohol Syndrome Essay Research Paper In
Fetal Alcohol Syndrome Essay, Research Paper In this world many different nations have a set of morals. Though each culture has their own morals they still have the same fundamental principles. Morals in each culture are set by their respective religion leading the people in faithful and honorable lives.
Aids 4 Essay Research Paper AIDS Acquired
Aids 4 Essay, Research Paper AIDS (Acquired Immune Deficiency Syndrome) is a deadly disease for which there is no cure. This disease was first recognized in the mid 1980’s. The cause of AIDS is the HIV virus, and is most commonly spread by venereal routes or exposure to contaminated blood or blood products.
Apert Syndrome Essay Research Paper Apert Syndrome
Apert Syndrome Essay, Research Paper Apert Syndrome (AKA Alport syndrome) is a genetic defect which can be inherited from a parent who has Apert or a fresh mutation. It falls under the broad classification of craniofacial/limb anomalies. Approximately 1 per 160,000 to 200,000 live births inherit it. Some symptoms that Apert sufferers have are various heart defects, ear infections, severe acne, increased incidence of eye injuries, and many more.
Down Syndrome Report Essay Research Paper Down
Down Syndrome Report Essay, Research Paper Down Syndrome Report by: SCHOOL SUX The chromosomal abnormality involved in most cases of Down syndrome is trisomy-21, or the presence of three copies of the 21st chromosome. As a result,
Down Syndrome 3 Essay Research Paper Down
Down Syndrome 3 Essay, Research Paper Down Syndrome Down Syndrome is a chromosomal disorder. It occurs in about 1 of every 800 births. People with Down syndrome may have mild to severe learning disabilities. Physical symptoms include a small skull, extra folds of skin under the eyes, and a protruding tongue.