Genetic Factors in Aggression (AQA A-Level Psychology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What percentage of genes do monozygotic (MZ) twins share compared to dizygotic (DZ) twins?
What percentage of genes do monozygotic (MZ) twins share compared to dizygotic (DZ) twins?
MZ: 100%, DZ: 50%
Approximately what percentage of variance in aggressive behaviour do twin studies attribute to heritability?
Approximately what percentage of variance in aggressive behaviour do twin studies attribute to heritability?
50%
Which neurotransmitter does the MAOA enzyme primarily break down in the brain?
Which neurotransmitter does the MAOA enzyme primarily break down in the brain?
Serotonin
In Coccaro et al.'s study, what was the concordance rate for physical assault in MZ twins?
In Coccaro et al.'s study, what was the concordance rate for physical assault in MZ twins?
50%
What percentage of variance in aggression did Rhee and Waldman's meta-analysis attribute to genetics?
What percentage of variance in aggression did Rhee and Waldman's meta-analysis attribute to genetics?
41%
What term describes when genetic predisposition combines with environmental triggers?
What term describes when genetic predisposition combines with environmental triggers?
Diathesis-stress interaction
What is the nickname given to the low-activity variant of the MAOA gene?
What is the nickname given to the low-activity variant of the MAOA gene?
Warrior gene
In Stuart et al.'s study of IPV, which men were the most violent perpetrators?
In Stuart et al.'s study of IPV, which men were the most violent perpetrators?
Men with low-activity MAOA gene
According to Vassos et al., how many genes may interact to determine aggressive behaviour?
According to Vassos et al., how many genes may interact to determine aggressive behaviour?
Hundreds or thousands
In Godar et al.'s study, what happened to serotonin levels in MAOA knockout mice?
In Godar et al.'s study, what happened to serotonin levels in MAOA knockout mice?
Considerably increased