mam could you please tell me something about genetic engineering

Genetic engineering, also called genetic modification, is the direct manipulation of an organism's genome using biotechnology. New DNA may be inserted in the host genome by first isolating and copying the genetic material of interest using molecular cloning methods to generate a DNA sequence, or by synthesizing the DNA, and then inserting this construct into the host organism.Genes may be removed, or "knocked out", using nuclease enzyme. An organism that is generated through genetic engineering is considered to be a genetically modified organism.