A waiver is a formal statement giving up a right. If you go on a school trip, your mom might sign a waiver saying that the school is not responsible if you get hurt on the trip. When you sign a waiver, youâre voluntarily giving up a privilege or legal right. A waiver is often required before you participate in something dangerous.
Strictly speaking, cloning is the creation of a genetic copy of a sequence of DNA or of the entire genome of an organism. In the latter sense, cloning occurs naturally in the birth of identical twins and other multiples.
Therapeutic cloning is the process by which a person's DNA is used to grow an embryonic clone. However, instead of inserting this embryo into a surrogate mother, its cells are used to grow stem cells. These stem cells could become the basis for customized human repair kits.