There are teenagers and baby boomers, hipsters and emo kids. A new crop of machismo-challenged heroesâcall them the âemoâ super-dudesâis headed for screens next year. But despite all the chatter about Weezer's influenceâabout nerd rock, or emo, or whateverâI don't really hear it.
Genetic engineering refers to the direct manipulation of DNA to alter an organismâs characteristics (phenotype) in a particular way. Genetic engineering, sometimes called genetic modification, is the process of altering the DNA in an organismâs genome.
The genetic engineering process. 1  A small piece of circular DNA called a plasmid is extracted from the bacteria or yeast cell. 2  A small section is then cut out of the circular plasmid by restriction enzymes, âmolecular scissorsâ.  The gene for human insulin is inserted into the gap in the plasmid.