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Plz help! Why is it important that scientists use identical twins, rather than fraternal twins or siblings in studying how the environment affects gene expression?
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Plz help!

Why is it important that scientists use identical twins, rather than fraternal twins or siblings in studying how the environment affects gene expression?

User Sean Cox
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Fraternal twins aren’t from the same egg so they may come out looking a little different but identical twins are from the same egg so they will look almost the same
User Zerotoinfinity
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