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MMLU / Which of the following best states why the study of twins is significant to the…

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question

Which of the following best states why the study of twins is significant to the field of behavioral genetics?

choices

  1. If a psychological attribute is genetically influenced, then fraternal twins are more likely to share this attribute than are identical twins or other siblings.
  2. If a psychological attribute is genetically influenced, then siblings reared together are more likely to share it than are identical or fraternal twins who are reared apart.
  3. The degree of relatedness in MZ twins can be determined through studying the behavioral genetics of related DZ twins.
  4. If a psychological attribute is genetically influenced, then identical twins are more likely to share this attribute than are fraternal twins and other siblings.

subject

high_school_psychology

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