Question

Which enzyme initiates the synthesis of DNA template strand?

• A. RNA polymerase
• B. DNA polymerase
• C. DNA ligase
• D. None of the above

Answer 1

The correct option is D None of the above

DNA replication is a biological process in which two identical copies of DNA are formed from one original DNA molecule. Numerous enzymes are involved in this process such as DNA polymerase, primase, ligase, helicase, etc. Helicase enzyme unwinds double stranded DNA molecule and forms replication fork. Primase is an enzyme which is used to form RNA primer. It is a starting point for DNA synthesis. Polymerase is involved in synthesis of nucleotide by using one strand of DNA as template. Ligase is an enzyme which is used to join the two Okazaki fragments of DNA.

Thus, the correct answer is option D.