Question

DNA polymerases can synthesize DNA

A. De novo by catalyzing the polymerization of free dNTPs.
B. By adding dNTPs to complementary dNTPs on a single-stranded DNA.
C. By adding dNTPs to a hydroxyl group on the end of a growing polynucleotide chain hydrogen bonded to a strand of RNA.
D. By adding dNTPs to a hydroxyl group on the end of a growing polynucleotide chain hydrogen bonded to a strand of DNA.

Answer 1

Answer: B

DNA polymerase adds free complementary DNA nucleotides to the a single strand