Criminology exam 2 biological and psychological perspectives biocriminology: study of the physical aspects of psychological disorders genetic predisposition genetics & criminality: xyy syndrome o get extra y chromosome from father: 20 times greater among inmates o xyy inmates: tall, physically aggressive, violent o must consider external. Men with an extra y chromosome tend to be very tall, generally of low intelligence and often present eeg abnormalities (eeg is discussed below) many of the early examples had histories of criminal and aggressive behavior. A microscopic piece of genetic material known as the y chromosome made headlines last week it is nothing new or rare every man has one in practically every cell, or he would not be a man. The court found that while an extra y chromosome seems like a logical explanation for mutant-aggressive behaviour, there is not much evidence that links the x or y chromosome to the deviant behaviour of serial killers.
Also known as polysomy y, xyy syndrome occurs in males who, instead of the usual 46 chromosomes (including one x and one y chromosome), have 47, due to the presence of an extra y chromosome this type of chromosomal anomaly is known as aneuploidy of the sex chromosomes. Are xyy men psychopathic killers there is no evidence that xyy leads directly to criminal behaviour or violence that is good news because approximately 1 in 1000 men is born with an extra y chromosome. However, in some men there is an extra chromosome studies, which looked at incarcerated offenders, focused on individuals with an xyy chromosome structure an assumption was made that xyy is a sign of extra maleness and will cause greater aggression and these individuals will be more involved in crime.
The added y to a male chromosome became known as the criminal gene in 1966 ‘price’ studied scottish convicts and discovered the xyy pattern in a huge number of them price stereotyped men with the extra y chromosome as having excess aggression, much greed and a lack of intelligence. Researchers have discovered a genetic abnormality in some males, where as the normal chromosome count for a male is xy some males had an extra y (xyy) which was found to be associated with aggressive and violent behaviour (male crime and deviance pg 9) among many other theories there is also the brain and neurological dysfunction and their. One theory, known as the xyy theory, indicated that violent males had an extra y chromosome, which resulted in a likelihood toward crime however, this theory was later disproved however, this.
A syndrome that is a genetic condition that occurs when a males genes have an extra y chromosome territoriality a ter associated with nonverbal communication that refers to how people use space to communicate ownership/occupancy of areas and possessions. Criminality: criminology and extra y chromosome 3476 words | 14 pages criminality has been sociologically defined as a form of deviant behavior from the norm and the acceptable rules of society a more generic definition of criminality is a behavioral predisposition that disproportionately favors criminal activity it is based on the premise. The y chromosome is a true chromosomal outlier, holding a fraction of the number of genes found on all the other chromosomes, including the x its genetic impoverishment is a legacy of its role in.
Impulse, aggression and sexuality in the xyy syndrome john money follow this and additional works at: xyy chromosomes and crime, 2 ausr & nzj criminology 5-19 (1969) extra y chromosome may make him specially vulnerable to insults. Which resulted in likelihood toward crime indicated that violent males had an extra y chromosome both the schools present opposite philosophies to explain deviant behaviour white et al in the 1990s 3. A chromosomal anomaly found in 1961 and correlated to males who demonstrated aggressive or violent behavior in criminal facilities it was initially presumed that the extra y chromosome set males up for these actions, but the theory was changed as xyy anomalies were later discovered in normal males commonly referred to as double-y condition.
Criminological psychology physiological theories of offending aidan sammons psychlotronorguk increasing the likelihood that they will officially be labeled as criminal (blackburn, 1993) the ‘extra y ’ hypothesis sex is determined by the pattern of a person’s sex chromosomes: xx in a woman, xy in a man it is a y chromosome that. Today, most scientists, psychologists and criminologists don't place any value on this outdated research, but the myth of a supermale with an extra y chromosome still lives on in popular culture. Normally, people have 23 pairs of chromosomes females being xx and males being xy how ever, on a rare occasion, two y chromosomes pair up with one x chromosome, resulting in a male with an extra male chromosome. Crime and the factors of the criminal behavior dr ayman elzeiny ( egypt) introduction to crime as for crime, everyone knows what it is the information about the crime reaches to the public may be through the newspapers , television programs, films, and novels.
Who have an extra y sex chromosome (xyy individuals),' the possibil- ity of inherent antisocial behavior in such individuals' 2 and the inability of the present criminal law system to dispense equal justice to them. Xyy chromosomal abnormality defense a legal theory that holds that a defendant's xyy chromosomal abnormality is a condition that should relieve him or her of legal responsibility for his or her criminal act. Xyychromosomes and crime richard g fox criminology recognizes a multifactorial approach to criminality, and is wedded to eclecticism in its search for the causes of crime, it still tends to are the males with an extra y chromosome - the super males or xyy's. Which of the following describes men with an extra y chromosome which of the following refers to a field of study that links violent or disruptive behavior to eating habits, vitamin deficiencies, genetics, and other conditions that affect body tissues refers to an attempt to derive a composite picture of an offender's social and.