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What percentage of light hits earth's surface directly?

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

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.