Why are regulatory genes so important?

Answer 1

Genes are segments of DNA that code for proteins. Genes are either regulated by being switched "off" or "on" - meaning they are not currently making their proteins OR they are currently making their proteins. It is to a cell's advantage to not make proteins from genes when they are not needed to conserve energy and building materials. Hope this helps - Coach H

Answer 2

I can't even really begin to explain how important it is. It's not just beneficial, it's essential. Gene expression controls every aspect of an organism's life. If an organism couldn't control its gene expression, it couldn't function. There are any number of examples that could be given. I'll try and give a very broad and simple one. Organisms are always in constant struggle to maintain homeostasis (a stable internal environment). When something in the environment, or inside the body changes, the organism has to compensate to keep its condition the same. In order to do this, the organism always has to code for some kind of protein (proteins are the result of the expression of a gene). Even if the substance that brings about the change isn't a protein, that substance was still originally created by a tissue, or an organ, or organelle that was created by some amount of protein synthesis. So in short, if the organism couldn't control its gene expression, it couldn't control protein synthesis, which means it would be at the mercy of its environment and itself. The organism would cease to live.

Answer 3

No cell must express all genes all the time. Out of all the genes in the entire genome, only a specific subset is required for a specific cell type. To make sure that a type of cell effectively performs only its own function, cells must control gene expression to express only the genes necessary for its function.

Answer 4

Gene regulation is the switching on or off of certain genes in order to create different effects. This is vital so that cells are able to react to changes, and so that specialised cells can perform different functions.

Answer 5

The primary reason genes are regulated is to keep a cell from overproducing a protein that it does not need. A good example of this would be E. coli. E. coli is capable of producing enzymes that will allow it to metabolize lactose. However, E. coli does not always have access to lactose. Thus, it would be a waste of energy for it to constantly be producing this particular enzyme. Gene regulation keeps it from wasting energy by producing an enzyme that it doesn't always need.

Answer 6

• Not all proteins are required at all times

• Not all proteins are diminished quickly

• Waste of the cell’s resources if all genes were transcribed and translated at all time

• By having some genes under regulation, the cell can manage its resources as needed

Answer 7

Cells regulate gene expression because if the expression of genes is altered, mutations, abnormalities, and even cancer can result.

Answer 8

Vagina JUICE... No It is not that the answer is so that the repressor will never bind the operator

Answer 9

it does apsolutely nothing. Because DNA is already programmed to do that specific job. Also if your reading this it is fake