FTO gene.

And if a little more specifically about the popular gene FTO (fat mass and obesity-associated protein), the polymorphism of which may be associated with a predisposition to obesity. Gene expression leads to variant genotypes: G/G - no predisposition G/A - body weight gain ~ 1.2 kg A/A - body weight gain ~ 3 kg What does it mean? This gene is located on the 16th chromosome. Or not located. Studies show that carriers of one copy of this gene per chromosome weigh an average of 1.2 kg more than "lucky" ones without this gene; if there are two such copies, then the average mass is already 3 kg more.