Multiple Choice
Which of the following is TRUE about cytokines?
A) They are carbohydrates.
B) They play an important role in immunity, but do not affect stem cell growth.
C) They play a role in the growth of stem cells, but are not important in immunity.
D) They are proteins that play an important role in immunity and the growth of stem cells.
Correct Answer:

Verified
Correct Answer:
Verified
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