Genetic Concepts
What is Behavioral Genetics?
What is understanding how both genetics and the environment contribute to individual variations
What are twin studies?
What are studies comparing the similarity between identical and fraternal twins to determine the role of genetics in behavior?
What is the Weissman et al. (2005) study about?
The study that found genetics tend to skip a generation.
Serotonin hypothesis is this theory?
What is serotonin causes depression?
What is the importance of the Minnesota Twin Study?
What is provided evidence for the heritability of various traits and behaviors within twins?
What are environmental stimuli?
What are external factors or stimuli that influence gene expression?
What is a concordance rate?
What is the probability that the same trait will be present in both members of a pair of twins?
What is the role of the 5-HTT gene?
According to Caspi et el it increases the risk of depression when exposed to stressful life events.
What is a limitation associated with population validity in twin studies?
What is they lack generliazblitly
What were the findings of the Dunedin Multidisciplinary Health and Development Study?
What are correlations between certain genetic variations and behavioral outcomes? (ex:aggression and substance abuse)
What is the Human Genome?
What is a set of genetic materials that make up a living being?
What are family studies?
Research conducted among siblings, parents, or children to assess how likely genetic traits are.
What change in serotonin levels did Raleigh et al. (1984) observe?
increase in serotonin levels in dominant monkeys
decrease in submissive monkeys
Who had a significantly higher lifetime prevalence of OCD in Nestadt et al. (2000)?
OCD was significantly higher in diagnosed participants compared with control relatives.
What does genetic determinism mean?
What is the view that genes cause traits?
What the difference between monozygotic twins and dizygotic twins?
Monozygotic are identical and came from the same egg and dizygotic twins each got their own egg
What is heritability?
The degree to which genetics contribute to a particular trait or behavior?
What percentage of heritability did Kendler et al. (2006) estimate for depression?
What is 38%
What does a high concordance rate in MZ(Monozygous) twins suggest about a behavior?
What is it suggest that their are genetic components?
What were the key findings of the Twin study?
It revealed the importance of both genetic and environmental factors in the development of behavioral traits by studying twins raised apart and together.
What does stand for DNA?
What is Deoxyribonucleic Acid?
What are adoption studies?
Studies comparing the behavior of adopted children with their biological and adoptive families?
What increased risk did Lilienfeld et al. (1998)?(study was about bulimia and anorexia)
What are eating disorder behavior?
What did Caspi et al. (2003) find about participants who inherited one or more short versions of the allele?
What is demonstrated more symptoms of depression and suicidal ideation in response to stressful life events.
The theory that those who adapt best to the environment will have a greater chance of surviving and passing on their genes is known as?
Natural selection/ survival of the fittest