Rather, the differences must be sought in the regulatory genes and proteins that control spatial organization.
The resulting microbes contain both structural and regulatory genes.
Cells have a small set of regulatory genes that control the activity of all the other genes.
Tweak just a hundred or so regulatory genes, and you'll get a sapient being looking almost exactly like a person.
Discussion There is good evidence that quantitative changes in gene expression are important for some regulatory genes.
This was a surprising result, and occurred for both matrix and regulatory genes.
Or, they say, it may serve as a regulatory gene that switches on other genes vital to the process.
Lastly, the regulatory gene is the gene for the repressor protein.
The regulatory gene does not need to be in, adjacent to, or even near the operon.
Even a small difference in the activity of a high-level regulatory gene could produce significant effects in the developing animal.
Wörterbuch für Biologie