Well, you can't change genes. They can only be unlocked, turned off or rearranged, or unless a group of mad scientists sin against mankind, and genetically modify a human. Genes are there, but they are either arranged in a special order, that they are in, and or some genes are turned off. Truth is we carry a lot of "junk" DNA, or to some extent.
It just makes me wonder what a group of scientists and a group of magicians can do, with a combination of black magick and controversial science. That would make a good sci-fi novel. Nonetheless, interesting.
What is beauty? That is a philosophical question. B-e-a-u-ty. That depends, and in some views, it all depends on what angle you are looking from, or from the questions point of view: looking at. Perspective.
Well, speaking of perspective, I highly suggest, 50 essays a portable anthology, by Samuel Cohen, if you want to read something that will help with your writing. Well, it makes you think, and it is full of short stories, or essays. Read lots, write lots; they both go together like phallic symbol and vessel. Skeet-skeet. ;)
I know what can be in place of being beautiful. Well, I don't even want to share it. You can learn to boggle people's minds, by seducing and glamoring others by mastering something that has to do with the psychic plane which basically induces feelings. But that is too much for me to mention, and too much for many to accept.
I think you can see beauty radiate off of people. No, this is a different kind of beauty. Wait, never mind, it is called confidence.