The DNA Polymerase Reaction Occurs in the ________ as Incoming

Multiple Choice

The DNA polymerase reaction occurs in the ________ as incoming nucleotides are added to ________ end(s) of the growing DNA chain.

A) 5' → 3' direction; the 3'-hydroxyl
B) 5' → 3' direction; the 3'-phosphate
C) 3' → 5' direction; the 5'-hydroxyl
D) 3' → 5' direction; the 5'-phosphate
E) 5' → 3' direction or 3' → 5' direction; both