Question

question: which among these is not an important enzyme involved in dna replication? answer options: select one of four methyltransferase topoisomerase primase ligase

Explanation:

To determine the enzyme not important for DNA replication, we analyze each option:

• Topoisomerase: Relieves DNA supercoiling during replication.
• Primase: Synthesizes RNA primers for DNA polymerase to start replication.
• Ligase: Joins Okazaki fragments on the lagging strand.
• Methyltransferase: Involved in DNA methylation (e.g., epigenetic regulation, not direct replication).

So Methyltransferase is not a key enzyme for DNA replication.

Answer:

A. Methyltransferase