What is the genetic significance of humans being either left-handed or right-handed?
The handedness of a person, whether left or right, is determined by the dominant hemisphere of their brain. While most individuals are right-handed, about 10% are left-handed. The exact cause of this is still not well understood but research suggests a combination of genetic and environmental factors could be at play.

Some studies have noted that there is a slight excess of certain genes among left-handers. For instance, a 2013 study
The genetic significance of humans being either left-handed or right-handed, also known as being sinistral or dextral, has been a topic of research for decades. being left-handed means using the left hand dominantly for doing various tasks, while right-handedness refers to the use of the right hand dominantly.

Although the exact cause of handedness is not yet fully understood, it is now generally accepted that there is a genetic basis for it