Genome design is going to be a key part of the future. That's why we need fast, cheap, accurate DNA synthesis, so you can make a lot of iterations of something and test them.
Knowing what your parents have gives you hints of things, but your genome is a totally unique combination of and interchange of DNA from your parents. There is no one else like you genetically.
How we understand our own selves and how we work with our DNA software has implications that will affect everything from vaccine development to new approaches to antibiotics, new sources of food, new sources of chemicals, even potentially new sources of energy.
Transposons are just small pieces of DNA that randomly insert in the genetic code. And if they insert in the middle of the gene, they disrupt its function.
There is a long history of how DNA sequencing can bring certainty to people's lives.
When you do cross-breeding of plants, you're doing this blind experiment where you're just mixing DNA of different types of cells and just seeing what comes out of it.
It turns out synthesizing DNA is very difficult. There are tens of thousands of machines around the world that make small pieces of DNA - 30 to 50 letters in length - and it's a degenerate process, so the longer you make the piece, the more errors there are.