A trait is likely to be heritable if ________ are more similar in that trait than _.

Name: A trait is likely to be heritable if ________ are more similar in that trait than _.
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Monozygotic (identical) twins have nearly identical genetic material, while dizygotic (fraternal) twins share, on average, only 50% of their genes. Therefore, if monozygotic twins are more similar in a trait than dizygotic twins, it is likely that the trait has a high heritability.

A Trait Is Likely to Be Heritable If ________ Are