The process of making multiple copies of a cell to treat a disease.

Therapeutic cloning.

Explanation: DNA cloning means making an identical copies of a gene. To clone means to make identical copies. Cloning can classified as reproductive or therapeutic cloning. Reproductive cloning is the process of making identical cells of an organism while therapeutic cloning is the process of making multiple copies of a cell to treat a disease. DNA cloning involves the separation of a specific gene or DNA segment from a larger chromosome, attaching it to a small molecule of carrier DNA and replication of the modified DNA thousands or millions of times.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex