Multiple Choice
Kinases and phosphatases are essential in the cell because they
A) help turn proteins "on and off" through changes in phosphorylation status.
B) are enzymes that destroy damaged proteins.
C) sense short poly-A tails in mRNA as a signal to degrade the mRNA.
D) destroy second messengers, thereby turning off a signal transduction pathway.
E) all of the above
Correct Answer:
Verified
Correct Answer:
Verified
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