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Multiple Choice
Phosphorylation cascades are useful signal transduction pathways because they ________.
a) Allow proteins to be easily activated by adding or removing a phosphate group.
b) Allow proteins to be easily deactivated by adding or removing a phosphate group.
c) Amplify the original signal many times.
d) All of the above.
A
Allow proteins to be easily activated by adding or removing a phosphate group.
B
Allow proteins to be easily deactivated by adding or removing a phosphate group.
C
Amplify the original signal many times.
D
All of the above.
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