Question

question 3 phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because... they are species specific. they always lead to the same cell response. they amplify the original signal many fold. they counter harmful effects of phosphatases. the number of molecules used is small and fixed. 1 pts

Explanation:

Phosphorylation cascades with protein kinases amplify the original signal. Each step activates multiple downstream molecules, leading to a large - scale cellular response from a small initial signal.

Answer:

they amplify the original signal many fold.