Dutch geneticist Clyde Francks finds genes play a minor role in left-handedness, with environmental factors and randomness having a larger impact.

Geneticist Clyde Francks in the Netherlands has found that genes play a small role in determining left-handedness, according to his latest research. Contrary to previous beliefs, his study suggests that environmental factors and randomness likely have a larger impact on handedness. This research contributes to the ongoing understanding of the complex relationship between genes and human behavior.