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Genetic Effects in Twin Studies

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Questions and Answers

What does passive genotype-environment correlation primarily involve?

Genetic similarities between parents and children lead to similar behavioral influences. (correct)

Children actively seek out situations that match their genetic traits.

The social environment reacts independently of genetic predispositions.

Parents influence their children through active coaching in sports.

What is the main characteristic of evocative genotype-environment correlation?

Individuals elicit responses from their environment due to their genetic traits. (correct)

Parents actively create opportunities based on their children's talents.

Children ignore negative reactions based on their looks.

There is no influence of genetics on how children are treated socially.

Which example best illustrates active genotype-environment correlation?

A shy child avoids social gatherings because they feel awkward.

An athlete's child is encouraged to join a sports team by their parents.

A musically inclined child participates in guitar lessons and school bands. (correct)

A popular child attracts friends regardless of their interests.

Which statement about the role of genetics in environment influences is NOT accurate?

<p>Environmental factors have no impact on the expression of genetic traits.</p> Signup and view all the answers

Which mechanism refers to the phenomenon where children choose environments that enhance their innate abilities?

<p>Active correlation</p> Signup and view all the answers

Study Notes

Genetic Effects in Twin Studies

Genetic influences on environment are hidden in the environmental component of twin studies.
Genes shape environment through three mechanisms:
- Passive genotype-environment correlation: Similar genes in parents and children influence behavior. Children inherit genes linked to, for example, athleticism and their athletic parents encourage them.
- Evocative genotype-environment correlation: Individuals' genetics evoke reactions from others, which, in turn, can amplify genetic tendencies. Attractive or outgoing children receive different treatment compared to less attractive or withdrawn ones.
- Active genotype-environment correlation (niche picking): Individuals actively seek out environments that support their genetic tendencies. Musically inclined children may seek out music instruction and opportunities to develop musical skills.

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Description

Explore the role of genetics in shaping behavior through twin studies. This quiz covers concepts like passive, evocative, and active genotype-environment correlations that illustrate how genetics and environment interact. Test your understanding of these complex relationships and the impact they have on individual development.