Which of these is the best method to protect ourselves from the sun while going outdoors on a sunny day? a. wear dark clothes; apply sunscreen with spf less than 30 b. wear a hat or sunglasses; apply sunscreen every 2 hours c. wear regular glasses; apply sunscreen once d. wear dark clothes; apply sunscreen once

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.