Which statement about actin is correct?
A) Actin is expressed only in muscle.
B) Actin is expressed at low levels in most cells.
C) No known function has been described for actin in nonmuscle cells.
D) Nonmuscle cells only contain G actin.
E) Actin is the most abundant cytoplasmic protein in many cell types.
Answer: E) Actin is the most abundant cytoplasmic protein in many cell types.
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Animal Biology
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