Genetic similarity + twin/kinship studies

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Last updated 3:52 PM on 4/9/26
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6 Terms

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Genetic similarity

shared genetics between individuals of the same or across species

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Genetics similarity aims

to investigate heritability.

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Heritability

proportion of variation between different traits as a result of genetics → based on the inheritance of genes

4
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Falconer model

aims to predict heritability by comparing behavioural traits in twins

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Twin studies

form of kinship studies used to investigate heritability → genetically very similar or identical material → MZ twins 100%, DZ twins 50%.

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Twin studies used

as they better isolate environment from genetics aids understanding of genetics and behaviour