What happens when a magnesium atom loses an electron in its outer energy shell? a. it has an increase in number of neutrons. b. it becomes a negative ion. c. it has an increase in the number of protons. d. it becomes a positive ion.

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.