The main techniques of
engineering today are: the
DNA technology (also called
engineering itself) in which of
genes from an are inserted
into the material of another
organism recombinant
beings; the nucleus
technology, popularly known as
“”, in which a nucleus a cell is
grafted a enucleated egg cell the
same species to a genetic copy of
donor (of the nucleus) ;
the technology of DNA , or
PCR (polymerase chain ), that
allows millions replications chosen
fragments of a molecule.

The recombinant DNA is
used to create organisms,
like mutant insulin-producing .
The nucleus transplantation technology
in its initial development itis the
basis,for example, the creation of
“Dolly” sheep. PCR has numerous
uses, as in medical to
detect microorganisms present blood
and tissues, DNA and
obtainment of DNA for
research.