What is the aim of genetic engineering ?

Curing human disease by introducing a new desirable gene . Destroying wild gene. Preserving defective gene . None of these .

Curing human disease by introducing a new desirable gene .

Genetic engineering is the technique to alter the chemistry of genetic material (DNA and RNA), to introduce these into host organisms and thus change the phenotype of the host organism and helps in curing human disease by introducing a new desirable gene .