This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
Rods and cones differ in all except 
Select and explain. 
A. Signal transduction, B. Light sensitivity, C. Wavelength, D. Acuity
A: Signal transduction
Answer: A: Signal transduction 
Explanation: In both rods and cones, the signal transduction mechanism is the same Rods are useful for dim/night vision, cones are used for bright/day vision Ref:: Ganong 25th ed/page 178