Explain how access to the exclusion zone is restricted and protected.

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

What is the next step in the process after a substrate enters the active site of an enzyme

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.