12. which of the following statements is true regarding biological cell theory? a. all organisms are made of cells c. all cells come from mitosis b. all cells possess a nucleus d. all cells come from meiosis

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

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.