It's a book, but like I said I learned about this in high school over a decade ago. My microbiology and genetics professors discussed it as well. This is definitely true. It's not something to get emotional about or act like it is an attack on masculinity - genes aren't emotional, aren't moral agents, just like phenotypes aren't generally something to be judged from a moral perspective. This is just a physical reality that can be fixed, theoretically. It is what it is.