Heritability and genetic determinants of normal human facial shape and body size
Human appearance is a complex assemblage of highly variable anatomic structures that together make each of us unique. Familial similarity, particularly in the face, underscores a genetic component; however, little is known about the genes that underlie differences in physical appearance. We estimated heritability of facial and anthropometric traits in African children and adolescents using genetic relatedness to jointly estimate variance explained by common genetic variation and uncaptured genetic variation, the sum representing narrow-sense heritability. Our facial trait estimates range from ...