最近发表在医学遗传学杂志上的文章指出，七列乳房中单核苷多态体显著与乳房的大小有关，其中三列与乳腺癌相关。

http://www.lbnelert.com/wp-content/uploads/2012/07/HEALTH-WATCH.jpgHEALTH WATCH: Does chest size matter? For a leading genetics company, it does when it comes to predicting the likelihood of breast cancer. For the first time, there’s a genetic link between breast size and breast cancer risks, according to a new study from 23andMe. The study, which was recently published in BMC Medical Genetics, identifies “seven single-nucleotide polymorphisms (SNPs) significantly associated with breast size, including three SNPs also correlated with breast cancer.”