chromosomal abnormalities Flashcards
1
Q
what is the abnormal male chromosomes
A
XYY
2
Q
what will the extra y syndrome lead to
A
- High testosterone levels
- Powerful bodily builds
- Heightened aggression
- Propensity for violent crime
3
Q
what does graham et al show
A
xyy males not actually as predicted
normal testosterone and aggression levels
taller but not necessarily more powerful
prone to learning difficulties
4
Q
what does hollin show
A
IQ scores amongst offenders are marginally lower than the general population
5
Q
what does thielgaard show
A
looked for a criminal gene
studied blood samples of 30,000 men
found that XYY males had slightly lower levels of intelligence than average and tended to be more aggressive towards people than normal men
6
Q
limitations of XYY arguments
A
cannot be related to women
there isn’t just one type of criminal behaviour not one gene can explain it
