December 14, 2018


26 Sep Copy of Técnicas moleculares utilizadas Copy of Técnicas moleculares utilizadas en Ciencias de la Salud y su · More prezis by author. 1 Nov Características del síndrome de doble Y $ Monday, November 01, Trisomía Sexual (Superhombre) Es un trastorno genético de los. XYY syndrome is a rare chromosomal disorder that affects males. It is caused by the presence of an extra Y chromosome. Males normally have one X and one Y.

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Knox, Richard August 11, A firewall is blocking access to Prezi content.

Síndrome XYY on FlowVella – Presentation Software for Mac iPad and iPhone

Height and head circumference are measured to be greater than average for most affected children. Auerbach, Stuart October sindfome, XYY syndrome is a rare chromosomal disorder that affects males.

Psychopathology of Childhood and Adolescence: Birth defects original article series 15 1. Knox, Richard November 16, Birth defects original article series 26 4.

XYY syndrome

J Clin Endocrinol Metab. Twentieth century ethics of human subjects research: About News Events Contact. Stand out and be remembered with Prezi, sinvrome secret weapon of great presenters. Other problems associated with Sotos syndrome include jaundice in newborns, curved spine scoliosisseizures, crossed eyes strabismusconductive hearing loss, congenital heart defects, kidney abnormalities and behavioral problems.

Genetic issues in public health and medicine. Pubertal development, testicular histology, and spermatogenesis are most often normal. Harvard researcher under fire stops newborn screening”. Independently, a cytogenetic laboratory in Chicago confirmed this hunch, reinforcing our inclination to believe that the XYY syndrome is really coming of age.


Chromosome abnormalities and genetic counseling 4th ed. Once in every male births, for example, the sex chromosome sindrme is XXY rather than XY, thus erring in the direction of femaleness. From early meiotic studies, it was concluded that the extra Y was eliminated before the spermatocyte formed, with an X-Y bivalent usually seen at diakinesis, and more recent studies support this concept.

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Stand out and be remembered with Prezi, the secret weapon of great presenters. Biology as a social weapon. Send link to edit together this prezi using Prezi Meeting learn more: Houston, we have a problem! The New York Times.

Chromosomal studies performed on such fluid or tissue samples may reveal the presence of an extra Y chromosome. Accessed October 3, A social activist in science. Some individuals with XYY also develop severe cystic acne during adolescence. Abnormal sex chromosome constitution and longitudinal growth: Males with XYY syndrome have 47 chromosomes, two of which are Y chromosomes. Specialised Social Services Eurordis directory. These cytogenetic findings parallel the observation that XYY men have no discernible increase in risk to have children with a sex chromosome abnormality.

Based on mischaracterizations of XYY males as aggressive and violent criminals in the December and March preliminary reports by Jacobs, et al. Aksglaede, Lise; Skakkebaek, Niels Xhy. Do you really want to delete this prezi?

He was convicted in of slaying eight nurses in Chicago by stabbing and strangulation. In Decemberthe Journal of Medical Genetics published the first XYY review article—by Michael Court Brown, [43] director of the MRC Human Genetics Unit—which reported no overrepresentation of XYY males in nationwide chromosome surveys of prisons and hospitals for the developmentally disabled and mentally ill in Scotland, and concluded that studies confined to institutionalized XYY males may be guilty of selection biasand that long-term longitudinal prospective studies of newborn XYY boys were needed.


Sixteen-year-old Stephen Franklin is expelled from school because, his father says, he has an obscure genetic defect—an extra “Y” chromosome. Reading difficulties are common due to an increased incidence of dyslexia. Thus it appears the vast majority of spermatocytes lose the extra Y before entering meiosis, a very few XYY primary spermatocytes are able to slip through and produce YY and XY spermatozoa.

Please log in to add your comment. Males with the classic form of the disorder have one extra X chromosome. Annals of Human Genetics.

Human and mammalian cytogenetics: Postnatal overgrowth leading to childhood tall stature—includes: While the IQ is in the normal range, it is usually lower than those of sibs or controls, and about half of XYY boys have a mild learning difficulty, and may display poor attention and impulsivity in the classroom.

Monosomy Turner syndrome 45,X.

Jacobs’ contention that an extra Y chromosome results in tall stature, mild mental retardation, and severely disordered personality characterized by violent, aggressive behavior.