I think it is that way, the output of genes is determined by what they do together, they all affect each other's function. This is possible because they evolved

I think it is that way, the output of genes is determined by what they do together, they all affect each other's function. This is possible because they evolved together and that is why they together are resilient against changes in the environment.. It is not like a program where flipping a single bit can crash the whole program.