Biohacking is a fairly new practice that could lead to major changes in our life. You could it call citizen or do-it-your-self biology. It takes place in small labs — mostly non-university — where all sorts of people get together to explore biology. That could mean figuring out how the DNA in plants affects their growth, or how to manipulate genes from another source to make a plant glow in the dark. It often is aimed at producing a product, like the chairs and building blocks that artist Philip Ross makes by feeding mushrooms a meal of sawdust or peanut shavings. It is experimenting on the cheap, usually without the benefit of a fancy university laboratory, and it often involves DNA and genes. If you don’t know enough biology to take part at first, you learn it along the way.