Final answer:
Genetic technologies are possible because the genetic code is universal, allowing human genes to be inserted into bacteria and still produce the correct human protein.
Step-by-step explanation:
The genetic code is universal, which is why genetic technologies are possible. The genetic code is a set of rules that determines how DNA sequences are converted into proteins.
Since the genetic code is universal, it means that the same genetic code is used by all organisms, from bacteria to humans. This allows scientists to insert human genes into bacteria and still produce the correct human protein.
For example, in recombinant DNA technology, foreign genes can be inserted into bacterial cells using plasmids or viruses as vectors. Bacterial cells then use their own machinery to read and express these genes, resulting in the production of desired proteins.