Gene cloning is a very different process from therapeutic and reproductive cloning .

Gene cloning is the most common type of cloning done by researchers in NHGRI "national human genome research institute".

Researchers use gene cloning technique to make copies of genes that they wish to study.

A little girl is affected by a disease called SCID "severe combined immuno deficiency syndrome"
It is a type of diseases that ressemble the symbtomes of AIDS, so they tried gene cloning on her

Steps of gene cloning
1-Inserting a gene from one organism , often reffered to as "foreign DNA" into a genetic material of a carrier called vector as bacteria , yeast or plasmids

2-The vector is placed in a condition to promote its multiplication

3-Transfiction of the vector into the patient

Disadvantages of gene cloning :

1-Injection must be repeated continously because those genes that have been copied have a half life time

2-The vector may bind in a wrong place in the genome during transfiction which may cause problems such as cancer , as the vector may bind to a certain promoter and cause hyperactivation.