clipped from: en.wikipedia.org   
Recombinant DNA is a form of artificial DNA that is engineered through the combination or insertion of one or more DNA strands, thereby combining DNA sequences that would not normally occur together.[1

It differs from genetic recombination, in that it does not occur through processes within the cell or ribosome, but is exclusively engineered.[1]

GloFish are a type of zebrafish with recombinant DNA. Genes for fluorescent proteins have been inserted into their genome to produce their fluorescent colors.

GloFish are a type of zebrafish with recombinant DNA. Genes for fluorescent proteins have been inserted into their genome to produce their fluorescent colors.

Recombinant DNA technique was engineered by Stanley Norman Cohen and Herbert Boyer in 1973

Recombinant DNA technology was made possible by the discovery of restriction endonucleases

A simple example of how a desired gene is inserted into a plasmid. In this example, the gene specified in the white color becomes useless as the new gene is added.

A simple example of how a desired gene is inserted into a plasmid.

Main article: Cloning

article: Chimeric DNA

When recombinant DNA is then further altered or changed

the molecule formed is referred to as "chimeric" DNA molecule,[1] with reference to the mythological chimera

An example of chimeric plasmid formation from two "blunt ends" via the enzyme, T4 Ligase.

An example of chimeric plasmid formation