History Main / ExtraYExtraViolent

1st Nov '16 3:41:48 AM LondonKdS
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Men with an extra Y chromosome is a pretty common genetic disorder (1 out of 1,000 biologically male humans), also known as Jacobs' syndrome that, at its worst, has only two symptoms: above-average height and an increased susceptibility to learning disorders.

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Men Being a man with an extra Y chromosome is a pretty common genetic disorder variation (1 out of 1,000 biologically male humans), also humans). Also known as Jacobs' syndrome that, at its worst, has syndrome, an XYY karyotype is currently believed to cause only two symptoms: above-average height and an increased susceptibility tendency to learning disorders.
disabilities (although only around half of XYY males show diagnosable learning disorders).



* Therefore, an extra Y chromosome makes you ''more'' male.

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* Therefore, an extra Y chromosome makes you ''more'' male.[[TestosteronePoisoning more male]].



* Serial killer Richard Speck was widely (and incorrectly) reported to be XYY, which popularized this trope.


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* The "XYY criminal" theory was further popularised in the press when lawyers for the notorious serial rapist and mass murderer Richard Speck falsely suggested that he was XYY, in the hope that it would lead to a successful insanity defence.
17th Mar '16 2:14:35 PM Morgenthaler
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* An episode of ''ForeverKnight'' centers on a legend that a (female) vampire who mated with an XYY male "higher than high, under the light of the full moon" would become human. The XYY human did have extra violent tendencies.

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* An episode of ''ForeverKnight'' ''Series/ForeverKnight'' centers on a legend that a (female) vampire who mated with an XYY male "higher than high, under the light of the full moon" would become human. The XYY human did have extra violent tendencies.
10th Dec '15 2:24:35 AM jormis29
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* In one episode of ''{{Series/Doomwatch}}'', “By the Pricking of My Thumbs…”, a teenager faces discrimination because he is XYY. The episode features a scientist who is convinced that having the extra Y chromosome predisposes a person to criminal behavior, but this position is meant to be seen as misguided.

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* In one the "By the Pricking of My Thumbs…" episode of ''{{Series/Doomwatch}}'', “By the Pricking of My Thumbs…”, a teenager faces discrimination because he is XYY. The episode features a scientist who is convinced that having the extra Y chromosome predisposes a person to criminal behavior, but this position is meant to be seen as misguided.
8th Nov '15 10:04:52 AM AndyLA
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Men with an extra Y chromosome is a pretty common genetic disorder (1 out of 1,000 biologically male humans) that, at its worst, has only two symptoms: above-average height and an increased susceptibility to learning disorders.

to:

Men with an extra Y chromosome is a pretty common genetic disorder (1 out of 1,000 biologically male humans) humans), also known as Jacobs' syndrome that, at its worst, has only two symptoms: above-average height and an increased susceptibility to learning disorders.
23rd Aug '15 6:22:21 PM Katsuhagi
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* [[InsaneTrollLogic Therefore, an extra extra Y chromosome makes you even ''more'' aggressive and violent.]]

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* [[InsaneTrollLogic Therefore, an extra extra Y chromosome makes you even ''more'' even]] ''[[InsaneTrollLogic more]]'' [[InsaneTrollLogic aggressive and violent.]]
18th Apr '15 6:11:14 PM nombretomado
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* The Season 5 finale episode "Born to Kill" of ''CSIMiami'' referenced this trope. A couple knew that their son had this condition and constantly treated him with suspicion because of it. [[spoiler:When their daughter accidentally kills their other daughter by pushing her down the stairs, she claimed ''he'' did it on purpose; this is what actually turned him violent.]]

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* The Season 5 finale episode "Born to Kill" of ''CSIMiami'' ''Series/CSIMiami'' referenced this trope. A couple knew that their son had this condition and constantly treated him with suspicion because of it. [[spoiler:When their daughter accidentally kills their other daughter by pushing her down the stairs, she claimed ''he'' did it on purpose; this is what actually turned him violent.]]
2nd Mar '15 6:40:37 PM DragonzZilla
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* [[InsaneTrollLogic Therefore, an extra extra Y chromosome makes you even]] ''[[InsaneTrollLogic more]]'' [[InsaneTrollLogic aggressive and violent.]]

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* [[InsaneTrollLogic Therefore, an extra extra Y chromosome makes you even]] ''[[InsaneTrollLogic more]]'' [[InsaneTrollLogic even ''more'' aggressive and violent.]]
6th Sep '14 9:00:52 PM CaptainCrawdad
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* In ''Full Cry'', by Rita Mae Brown, two characters discuss criminals, with one claiming many criminals were “born bad,” giving as an example that most men who are born XYY can’t control their violent behaviour.

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* In ''Full Cry'', by Rita Mae Brown, two characters discuss criminals, with one claiming many criminals were “born bad,” bad,” giving as an example that most men who are born XYY can’t control their violent behaviour.



** Generally speaking, prison populations have considerable concentrations of people with significantly low IQ, for whatever reason.
6th Sep '14 8:57:22 PM Austin
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* In ''Hybrids'', by Robert J. Sawyer, the link between an extra Y chromosome and a predisposition to violent behaviour is mentioned. A character even suspects another character of being XYY based on his physical appearance and personality.

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* In ''Hybrids'', ''[[Literature/TheNeanderthalParallax Hybrids]]'', by Robert J. Sawyer, the link between an extra Y chromosome and a predisposition to violent behaviour is mentioned. A character even suspects another character of being XYY based on his physical appearance and personality.



* Interestingly, in ''Middlesex'', by Jeffrey Eugenides, XYY boys are referred to as "dreamers and loners," rather than the common stereotype.

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* Interestingly, in ''Middlesex'', ''Literature/{{Middlesex}}'', by Jeffrey Eugenides, XYY boys are referred to as "dreamers and loners," rather than the common stereotype.
11th May '14 11:51:56 AM funopolis14
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Added DiffLines:

* This trope is prominently featured in ''Altered Biography: The Womb Years'', by Douglas Isaac, which includes a scene where one character suggests that a double Y chromosomal condition is partly responsible for the criminality of another character. The term "crime-o-somes" is also used in reference to this trope.
* In ''The Wizard of Seattle'', by Kay Hooper, Serena and Merlin speculate on why so many men in Atlantis look like Neanderthals and it is suggested that it could be due to having an extra Y chromosome. Merlin claims that many overly aggressive men are XYY and that the physical appearance of these brutish, Neanderthal-like men could also be linked to this abnormality.
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