Handedness

The term handedness refers to the habitual or more skillful use of one hand as opposed to the other. Approximately 90% of people are right-hand dominant, and a number of biological, sociological, and environmental theories have been proposed to explain the trend. In 2007, researchers discovered the LRRTM1 gene, the first gene linked to an increased likelihood of left-handedness. Many cultures have associated "lefties" with evil or bad luck. What is one advantage associated with left-handedness? Discuss


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