Reason for left handers

Left handers:

The actual reason for the left handers is still not known. But scientists believe it may be due to some genetic factors. When the baby is developing in the womb, there are 2 kinds of genes which baby inherits from it's parents which govern the hand dominance. They are C and D. If the baby inherits D gene from both the parents, then they are surely be right handed. If the baby inherits D gene from one parent and C gene from other parent, then the chances of baby being right handed are much higher. i.e.90%. If the baby inherits C gene from both parents, they may be either left handed or right handed.(50% possibility). Studies suggest that approximately 10% of the world population are left handed. A study from last year has shown that there is nothing to do with your brain but the actual reason for this could be determined by spinal cord while you are in womb. The famous left hand personalities are Bill Gates, Tom Cruise, Barack Obama, Justin Biber, John Cena, Silvester Stallone. For them, August 13 is celebrated as International Left handers day.