Explain how twin and adoption studies are used to determine whether behavior is due to genes or envirnoment.

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In any study or
experiment, it is key to isolate and limit the variables. When studying nature verses
nurture, an adoption study helps to easily narrow the variables. The child does not
share biological genes with the parents, so we can look at the effects of the
environment more clearly. Although, certain discrepancies might be attributed back to
genetics. For instance, if an adopted child (especially one who has been in the same
environment since birth) exhibits certain behaviors not found in their environment, we
must assume genetics could play a role. Twin studies are particularly interesting
because twins share the same genetics and the same environment. What makes them
different whent these two variable are the same? What makes one twin react differently
to the environment? Both twin studies and adoption studies are key to the scientific
understanding of the roots of behavior.

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