he use of genetic engineering to transfer human genes into bacteria

a
is impossible with current technology.
b
causes the human genes to manufacture bacterial proteins.
c
results in the formation of a new species of organism.
d
allows the bacteria to produce human proteins.

d

allows the bacteria to produce human proteins.

The transfer of human genes into bacteria through genetic engineering is a well-established technique, commonly used in biotechnology. When a human gene is inserted into a bacterial cell, the bacteria can be engineered to use this gene to produce the protein that the gene encodes for, which in this case would be a human protein. This technology is widely used for the production of insulin, growth hormones, and other medically important substances.