sentences:  Magenis's first major research project involved a heritable fragile site on the long (q) arm of chromosome 16.She traced this 16q fragile site through a multigenerational family and, together with Hecht and Everett Lovrien, she linked the 16q fragile site to the gene for haptoglobin.The mapping of haptoglobin to 16q was the second instance in which a human gene was mapped to a specific autosome (non-sex chromosome), presaging the Human Genome Project.