Which of the following statements about the enzyme DNA polymerase is/are correct?
1
DNA polymerase synthesizes the DNA strand in the 3’ to 5’ direction.
2
DNA polymerase requires a primer to initiate DNA synthesis.
3
DNA polymerase has proofreading activity to correct errors during DNA replication.
4
DNA polymerase can synthesize DNA on a single-stranded template without a primer.