Three individuals carry the same disease-causing mutation; two suffer from the disease but exhibit different symptoms, while the third is completely unaffected. Why? While measures of penetrance focus ...

Sometimes, identical genes will produce different expression patterns. Why? Geneticists are now examining the "penetrance" and "expressivity" of genotypes and their phenotypes. In fact, large ...

Scientists are bringing us closer to understanding the musical experience through a novel approach to analyzing a common musical effect known as vibrato. Scientists at Queen Mary University of London ...

Von Recklinghausen disease is autosomal dominant, but has very variable expressivity among affected individuals (i.e. there is a range of symptoms and signs that occur in different people with NF1).

Analysis of more than 1,500 natural conversations suggests that humans may have evolved more complex facial muscle movements to help us bond with each other. In the first part of the study, ...