Jacob's XYY theory

this theory of criminality suggests what

that some crime might be attributable to a chromosomal abnormality

humans have how many chromosomes and how many in pairs

there’s 46 chromosomes and 23 pairs

humans have 46 chromosomes , arranged into 23 pairs which determine whatt

which determine the shape and constitution of our body and two determine sex

sex is determined by the pattern of what

of a person’s sex chromosomes: XX in a women, XY in a man.

It is what chromosome that makes a person male

Y

Can there be abnormalities in chromosomes

yes soemtimes

sometimes there can be abnormalities, one of these is….

an is an extra Y chromosome

sometimes there can be abnormalities , one of these is an extra Y chromosome which is known as…

xyy syndrome

xyy men have been labelled as what

super males

xyy men have been labelled as super males, because of the suggestion that xyy are….

more violent, agressive, tall and well built and of low intelligence than males with single y chromosome

how did jacob carry out his research, what did he do

• studied patients in scotland in hospitals.

• researchers took bloods samples and carried out chromosome analysis

what did his research find =

• xyy men are o…. in p…..

• h…. p….. of inmates with x…. s……

• many had a h…. of a…. or v….

• 1…. in 1…. men have x….. in p……

• 1 in 1….. g…. population

• xyy men are over represented in prsion

• high proportion of inmates with xyy syndrome

• many had a history of aggression or violence

• 15 in 1000 men have xyy in prison

• 1 in 1000 general population

who was the serial killer that was suspected to have xyy syndrome

john wayne gacy

what did john do

sexually assaulted, tortured and killed at least 33 men in usa

summary = This theory suggests that s….. crime might be a…….. to a ch…….. abnormality. Hu…… have ….. chromosomes, a…… into ….. pairs which determines s…., s….and c…………of body. Sex is d…..by a p…. of the p…..’s s… chromosomes, these are X… in w… and X… in m….. Y chromosomes m….. person m….e. S………… there can be a….., o…. is an e.. Y chromosome, called X…. syndrome. Xyy men have been l… as s…. males because it’s s…… that xyy men are m…. v….t, a……, t……, well b……and l……. in……… compared to s……… Y chromosome men. His re……. included, studying p…… men in S………..h…….., researchers took b…… samples and c…….. out c……… analysis. His research s……, that xyy men o…… r……….in prison, there was a h…….proportion of i……… with xyy syndrome, many had a h………of v……… or a……... 1…….in 1……… men have xyy in p……….. 1 in 1…….have in general p………. It was s………. that J…….. Wayne G……. had xyy syndrome, he s…….. assaulted, t…….. and k…… at least 3….. men in u…..

This theory suggests that some crime might be attributable to a chromosomal abnormality. Humans have 46 chromosomes, arranged into 23 pairs which determines sex, shape and constitution of body. Sex is determined by a pattern of the person’s sex chromosomes, these are XX in women and XY in men. Y chromosomes makes person male. Sometimes there can be abnormalities, one is an extra Y chromosome, called XYY syndrome. Xyy men have been labelled as super males because it’s suggested that xyy men are more violent, aggressive, tall, well built and low intelligence compared to single Y chromosome men. His research included, studying prisoned men in Scottish hospitals, researchers took blood samples and carried out chromosomal analysis. His research showed, that xyy men over represented in prison, there was a high proportion of inmates with xyy syndrome, many had a history of violence or aggression. 15 in 1000 men have xyy in prison. 1 in 1000 have in general population. It was suggested that John Wayne Gacy had xyy syndrome, he sexually ssaaulted, tortured and killed at least 33 men in usa.