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Epigenetic Factor in Schizophrenia
-Parental Age: It has been found that the compared to younger fathers, older fathers have children who are more likely to have schizophrenia. It is because the sperms of older men have undergone more cell divisions and therefore are more likely to have higher rates of mutations when copying the chromosomes.
-When compared to control group, people who have schizophrenia are more likely to have certain genes methylated which would lead to lower probability of them being expressed.
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Behavioral Neuroscience
Psychology
Neuroscience (Neurobiology)
Social Science
Empirical Science
Science
Life Science / Biology
Biomedical Sciences
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Two individuals, Sam and Chris, are concerned about their risk of developing schizophrenia. Sam's identical twin was recently diagnosed with the disorder. Chris's fraternal twin was also recently diagnosed. Based solely on the principles of genetic influence, which statement best analyzes their respective situations?
Consider four individuals, each with a different family history. Based on the principle that the likelihood of developing schizophrenia is strongly correlated with the degree of genetic similarity to an affected relative, which of these individuals faces the highest statistical risk?