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== XX Male Syndrome == ...a Chapelle, who was a significant contributor to the understanding of this syndrome.

'''XXXXY syndrome''' ...affects males. It is also known as '''49,XXXXY syndrome''' or '''Fraccaro syndrome''', named after the Italian geneticist Antonio Fraccaro who first described

* [[Down syndrome]]: This is caused by an extra copy of chromosome 21. * [[Turner syndrome]]: This occurs when a female is born with only one X chromosome.

...rm is used to describe the unique combination of both female (ovarian) and male (testicular) reproductive tissues in a single organ. * [[Hermaphrodite]]: An organism that has both male and female reproductive organs. In many cases, these organisms can produce

...vidual's reproductive or sexual anatomy doesn't fit typical definitions of male or female. ...xual anatomy that doesn’t seem to fit the typical definitions of female or male. This can involve variations in chromosome patterns, gonads, or genitals.

* [[Down Syndrome]]: This is caused by an extra copy of chromosome 21. * [[Turner Syndrome]]: This occurs when a female is born with only one X chromosome.

...forty-eight, X-triple-Y") is a rare [[chromosomal abnormality]] in which a male has an extra two copies of the Y chromosome in each cell. ...ing chromosome in many species, since it carries the genes responsible for male development.

...due to conditions such as [[Turner Syndrome]] and [[Androgen Insensitivity Syndrome]]. ...biologically by the production of gametes (ova) which can be fertilized by male gametes.

...ive, is a medical term referring to the inability of an individual, either male or female, to contribute to conception. ...cause sterility. For example, [[Klinefelter Syndrome]] in men and [[Turner Syndrome]] in women can result in sterility.

...ated with osteoporosis, and to aid in the development of girls with Turner syndrome. * [[Anabolic Steroid]]: A synthetic steroid that mimics the effect of the male hormone testosterone.

* [[AIDS]] - see Acquired immunodeficiency syndrome * [[Acquired immunodeficiency syndrome]] - infection by the human immunodeficiency virus (HIV), which causes a wea