Why are some people Left Handed? + more videos |

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Actually, till now it is not fully understood why some people are left-handed while others are right-handed.
A theory suggests that genetics might play a role in determining the hand dominance. As per the theory, when a baby is developing in the womb, there are two forms of genes known as D and C, which the baby can inherit from its parents.
If the baby inherits D gene from both the parents, then the baby will surely be right-handed. If the baby inherits D gene from one parent and C gene from the other, then the chances of baby being right-handed are much higher. However, if the baby inherits C gene from both the parents, then the baby will either be right-handed or left-handed. The chances are 50-50.
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