The universality of genetic code
refers the fact that living beings
have protein synthesis machinery
according to the
principles of storage, and
recognition of , including
translation of codons. This fact
possible the exchanging genes
or gene between different
organisms secures that these
continue to command synthesis.

This universality, example, makes
feasible insertion of a of
human DNA a gene for
production of a protein into the
material of bacteria. the
bacterial transcription translation
systems work the same manner
the correspondent human do,
the bacteria begin to synthesize
human protein related the inserted
DNA . There are industries
produce human insulin ( use by
diabetic ) in this way,
by bacteria with
DNA. If the code was not
this kind of
manipulation would be or
very difficult accomplish without new
progresses.