Topic 2.1- Jacobs et al XYY (genetic theories)

Question 1

what is the chromosome for the ‘super male syndrome’

Answer 1

XYY

Question 2

what are the characteristics for males with XYY?

Answer 2

More aggressive, lower intelligence

Question 3

what are characteristics with males with Klinefelter syndrome?

Answer 3

Increased height, erectile problems, lack of fertility and weak muscle tone

Question 4

Jacobs study- Strength

Answer 4

studies of imprisoned criminals, where a higher than average proportion of inmates were found to be XYY

Question 5

Price and Whatmore, what they found (evaluation of jacobs study)

Answer 5

.XYY males were more immature and unstable, with a strong tendency to commit motiveless property crime

Question 6

Limitations of the XYY study

Answer 6

.xyy males are stereotyped violent offenders, therefore labelled
.more likely to be caught due to low intelligence
.rare syndrome, as only 1 in 1000 men have it