Who makes a comment about the hand preferences of right-handed men?

Lamar, a character in "GATTACA," makes an observation about the hand preferences of right-handed men, specifically noting that typically, the majority of right-handed men will have a dominant right hand. This comment reflects the broader themes of genetic determinism and the societal expectations embedded in the film's future world, where genetics largely determines an individual's potential and identity. Lamar's mention of hand preferences subtly hints at the meticulous analysis and categorization of individuals based on their genetic makeup, reinforcing the film's exploration of how traits and abilities are assessed in a highly controlled society. His character plays a role in the narrative that critiques the idea that one's genetics should dictate one's opportunities and worth.