A depiction of the MAPK/ERK signaling pathway that leads to cell growth is shown in the image. What would be observed if a carcinogenic compound in coal tar activated step 3 of the pathway, even in the absence of the signaling molecule?

A) The transduction molecules in step 5 would always be active.
B) Step 2, the step linking the receptor to transduction, would always be active.
C) Step 4, a transduction step, would be prevented from activating the target protein.
D) The transcription factor in step 6 would be prevented from transcribing the target genes.

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.

3. is true i think i should be right

Yes photoreceptor is a specialised cell..