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Questions and Answers
What are the ways to explain gene-environment correlations?
What are the ways to explain gene-environment correlations?
What is the definition of Gene-Environment Correlations?
What is the definition of Gene-Environment Correlations?
Gene-Environment Correlations refer to the interplay between genetic and environmental factors in determining who we become.
What is Passive Gene-Environment Correlations?
What is Passive Gene-Environment Correlations?
An association exists between a person's genetic makeup and the environment in which they are raised.
What happens in Evocative Gene-Environment Correlations?
What happens in Evocative Gene-Environment Correlations?
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What is Active Gene-Environment Correlations?
What is Active Gene-Environment Correlations?
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The phenotypes of identical twins tend to diverge as they age.
The phenotypes of identical twins tend to diverge as they age.
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The parent's genotypes will influence the environment they create for their children.
The parent's genotypes will influence the environment they create for their children.
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What type of studies can separate the influences of environment from the influences of genes?
What type of studies can separate the influences of environment from the influences of genes?
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What does the range of reaction assert?
What does the range of reaction assert?
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What are genes associated with besides physical traits?
What are genes associated with besides physical traits?
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Match the following statistics regarding adoptees and schizophrenia:
Match the following statistics regarding adoptees and schizophrenia:
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Study Notes
Gene-Environment Correlations
- Gene-environment correlations (rGE) emphasize the interplay between genetics and environmental influences in shaping individuals.
- Three forms of rGE: passive, evocative, and active correlations.
Passive Gene-Environment Correlations
- Children inherit genotypes from parents that influence the environment in which they are raised.
- Parents with shared genetic traits (e.g., tall and athletic) are likely to create environments promoting sports, which enhances the child's genetic tendencies.
Evocative Gene-Environment Correlations
- Individuals' heritable behaviors elicit responses from their environment.
- A child with a tall athletic build may receive encouragement and opportunities in sports, reinforcing genetic predispositions.
Active Gene-Environment Correlations
- Individuals select environments that align with their genetic make-up.
- For instance, a child genetically predisposed to athleticism may actively pursue sports, reinforcing their genetic advantages.
Genetic Influence on Phenotypes
- The phenotypes of identical twins diverge with age, illustrating that environmental factors play a significant role despite shared genetics.
- Parental genotypes affect the environments they create for their children, further linking genes to behavioral outcomes.
Studying Genetic and Environmental Influences
- Adoption studies allow the disentangling of genetic and environmental influences on behavior and mental health.
Range of Reaction
- The range of reaction theory posits that genes establish limits for potential development while environmental factors determine where an individual falls within those limits.
Genetic Links to Mental Health
- Genes significantly impact temperament and various psychological disorders, such as depression and schizophrenia.
- Genetic factors alongside environmental experiences shape behavior and mental health outcomes.
Study on Schizophrenia in Adoptees
- Adoptees from high genetic risk (mother with schizophrenia) raised in disturbed environments showed a 36.8% likelihood of developing schizophrenia.
- In contrast, those raised in healthy environments had a significantly lower risk of 5.8%.
- Adoptees with low genetic risk from disturbed environments faced a 5.3% likelihood, dropping to 4.8% in healthy environments, indicating the strong influence of both genetics and environment.
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Description
This quiz explores the concept of gene-environment correlations (rGE) and their impact on individuals. It covers the three forms of rGE: passive, evocative, and active correlations, highlighting how genetics and environment interact to shape behaviors and traits. Test your understanding of these key concepts in genetics and environmental influences.
