27. Which of the following activities does E. coli DNA polymerase III lack? (A) 5' → 3' polymerase (B) 5' → 3' exonuclease (C) 3' → 5' exonuclease (D) E. coli DNA polymerase III has ALL of the above activities.

3. In the sodium-potassium pump (A) sodium is transported out of the cell and potassium into the cell, both against concentration gradients (B) sodium is transported into the cell and potassium out of the cell, both against concentration gradients (C) sodium is transported out of the cell and potassium into the cell, both in the same direction as concentration gradients (D) sodium and potassium are both transported out of the cell against concentration gradients

27. Which of the following activities does E. coli DNA polymerase III lack?
(A) 5' → 3' polymerase
(B) 5' → 3' exonuclease
(C) 3' → 5' exonuclease
(D) E. coli DNA polymerase III has ALL of the above activities.

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