1- Why is it beneficial for E. coli to have the ability to regulate the expression of the lac genes, rather than just express them all the time?

2- Why is gene regulation necessary in the development of multicellular organisms? Use a specific example to support your argument.

3- Suppose you are a scientist trying to help people who cannot produce an enzyme needed for proper digestion. How could you use genetic engineering techniques to make transformed bacteria that produce the enzyme?

Question

1-  Why is it beneficial for E. coli to have the ability to regulate the expression of the lac genes, rather than just express them all the time?

2-   Why is gene regulation necessary in the development of multicellular organisms? Use a specific example to support your argument.

3-   Suppose you are a scientist trying to help people who cannot produce an enzyme needed for proper digestion. How could you use genetic engineering techniques to make transformed bacteria that produce the enzyme?