Cataract and lens replacement uses different approaches

Which characteristics are typical of a human population in the postindustrial stage?

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

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.