A new study has found that tubulins, unique proteins that build the internal skeletons of cells, play a role in determining left-right brain asymmetry and influence which hand is dominant. Tubulins, which are long, tube-like filaments that control the shapes and movements of cells, impact which hand is dominant because they form cilia, or hair-like objects in the membrane that directs the flow of fluids during human development. The study analyzed data from 313,271 right-handed and 38,043 left-handed individuals and discovered that variants in the tubulin gene ere 2.7 times more likely among those who were left-handed. (Study Finds)
Phone Topic: Are you ambidextrous or do you know anyone who is?