This list of unsolved deaths includes notable cases where victims have been murdered or have died under unsolved circumstances, including murders committed by unknown serial killers. The mysteriously-deceased are listed chronologically by year.
Genetic engineering, also called genetic modification, is the direct manipulation of an organism's genome using biotechnology.
1 It may also mean extracting DNA from another organismâs genome and combining it with the DNA of that individual. 2  Genetic engineering is used by scientists to enhance or modify the characteristics of an individual organism.