Agree with you very much that biology will drive a lot of progress throughout the 21st century. There will be indescribable advances in genetic engineering of enhancements or replacements to ourselves and artificial organisms. Imagine custom made bacteria for chemical manufacturing, purpose built insects, implantation of additional of genes into humans like the enzymes to digest cellulose like a termite, etc.
I think one day years from now, altering your DNA will be like the current body modifications or tattoos. Anyone can do it in any city in the world, with standard equipment and acceptable risk of side effects (like an infection from a dirty needle).