"Unraveling the Genetic Links to Left-Handedness Through Rare Variants"

A study has linked rare genetic variants to left-handedness, finding that people with these variants are more likely to be left-handed. The study also suggests potential connections between left-handedness and neurodevelopmental disorders, as well as genes associated with autism. Researchers identified a gene called TUBB4B, which codes for microtubules important for neuron development, as being linked to left-handedness. The findings provide further evidence for the involvement of specific genes in determining left-handedness and may lead to a better understanding of how genes contribute to brain development and disorders.