Briefly discuss the four major aspects of biotechnology, including at least two examples of how biotechnology can help improve human health or the environment, and include at least two ethical concerns its increased use has raised.

Question
The technical advances covered in Chapter 15 are creating a host of medical and moral issues that we will all have to confront. Briefly discuss the four major aspects of biotechnology, including at least two examples of how biotechnology can help improve human health or the environment, and include at least two ethical concerns its increased use has raised.