Which of the following characteristics is shared by a hagfish and a lamprey?
a) a rasping tongue
b) paired fins
c) jaws
d) a well-developed notochord

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.