1.0Glossaryhttps://www.healthbenefitstimes.com/glossaryGlossaryhttps://www.healthbenefitstimes.com/glossary/author/adminglossary/Co-twin - Definition of Co-twinrich600338<blockquote class="wp-embedded-content" data-secret="hqmVg6R5tk"><a href="https://www.healthbenefitstimes.com/glossary/co-twin/">Co-twin</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.healthbenefitstimes.com/glossary/co-twin/embed/#?secret=hqmVg6R5tk" width="600" height="338" title="“Co-twin” — Glossary" data-secret="hqmVg6R5tk" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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In behavior genetics, research using the twin method, the member of the pair who is tested later to determine whether he or she has the same diagnosis or trait discovered in his or her birth partner, the index case: co-twin control.