Identify Application of biology in genetic engineering?

Genetic engineering is the artificial transplantation of Heriditary material[genes] of an organism. Genetic engineering is one of the most important field of Biology.It has produced such varieties of plants and animals which can fulfill the requirements of food for 1 arge population. Genetic engineering is very important in the diagnosing of heriditary diseases e.g=Haemophilia, colour blindness e.t.c