If a dna molecule is compared to a spiral staircase, what parts make up the steps?

9. the history of life on earth is recorded in

During convection, less dense fluid rises and denser fluid sinks.

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.