Why do some kinds of point mutations (substitution) generally result in greater changes in proteins than others?

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.

2polnis which of the following is an advantage of an in vitro experiment?me

Name 3 injuries and two diseases that affect the skeletal system.