This is a better explanation of genetic modification.
“What if we create the child through invetro fertilization ? While were at it,we splice in a gene from a dog to give the kid a better sense of smell ?. The medium we use to do this would be a strain o E-coli.”
I don’t quite agree with your analogy, because as far as I know, genes from one species are not utilized in other species.
Happy to be corrected if I am wrong.