What did rosalinda franklin contribute to the effort to identify the structure of dna

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

Which identifies the main purpose of biological taxonomy?

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.