What we choose to study—whether fine art or finance—is one of the most influential decisions in our lives. It shapes not only ...

In Mendelian inheritance patterns, you receive one version of a gene, called an allele, from each parent. These alleles can be dominant or recessive. Non-Mendelian genetics don’t completely follow ...

When you see a family with obese parents and children, could the cause be a genetic influence? Yes, but lifestyle is also a powerful influence. Obese parents may follow a lifestyle of overeating ...

In the 1990s, Lee Sweeney, a physiologist at the University of Pennsylvania, demonstrated that inserting the gene encoding insulin-like growth factor 1 (IGF-1) into the muscle cells of mice increased ...