Doing a simple Google search brings up the following:
You’d be right–handed with either one or two copies of the right hand gene. To be left–handed, both copies would have to be the left hand gene. So if two lefties had a baby, the baby should turn out left–handed. … For example, if both parents are right–handed, there is a 1 in 10 chance of having a left–handed child. June 3, 2005
I’m just curious about the genetics of handedness. Both of my …
According to Wikipedia:
Handedness displays a complex inheritance pattern. For example, if both parents of a child are left-handed, there is a 26% chance of that child being left-handed.[14] A large study of twins from 25,732 families by Medland et al. (2006) has indicated that the heritability of handedness is roughly 24%.[15]
What is the correct answer?