For the following traits, the concordances (occurrence of the same phenotype)of MZ and DZ twins are given as percentages. Which trait shows the most genetic as opposed to environmental influence? 
Definitions:
Emotional Labels
Terms or phrases used to identify and express feelings or emotions experienced by individuals.
Circumplex Model
A model proposing that emotions can be represented in a circular space involving two dimensions: valence and arousal.
Emotional Words
Words that convey or evoke strong feelings or emotions.
Two Dimensions
Relates to or involves two aspects, features, or elements, often implying a framework or system for analysis or classification.
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