Anew drug has been created by altering dna. what process has been utilized to create this drug?

The process of genetic engineering has been utilized to create this drug.

Genetic engineering is the artificial modification of DNA or other nucleic acid molecules in order to alter an organism’s characteristics in a certain way using biotechnology. Genetic engineering is used by scientists to improve or change the genetic makeup of an individual organism and it involves the transfer of genes to create ameliorate organisms.

answer; ///(b) it is composed of four protein chains and four heme groups;