Diagram of the ways to reprogram cells along with the development of<unk> s.<unk>  is the creation of a genetically identical copy (or clone) of a<unk> . The term is generally used to refer to artificial<unk> , which is the reproduction of<unk>  cells and tissue. It does not refer to the natural conception and delivery of identical twins. The possibility of<unk>  has raised controversies. These ethical concerns have prompted several nations to pass laws regarding<unk> . Two commonly discussed types of<unk>  are therapeutic<unk>  and reproductive<unk> . Therapeutic<unk>  would involve<unk>  cells from a<unk>  for use in medicine and transplants. It is an active area of research, but is not in medical practice anywhere in the world, as of 2022. Two common methods of therapeutic<unk>  that are being researched are somatic-cell nuclear transfer and (more recently) pluripotent stem cell induction. Reproductive<unk>  would involve making an entire cloned<unk> , instead of just specific cells or tissues.
Human cloning
Germ line theory
Biological engineering
Gene delivery
Gene doping
Assisted reproductive technology
Behavioral epigenetics
Genome editing