Question

In DNA replication, the Okazaki fragments on the lagging strand are joined together by ______.

विकल्प

• DNA ligase

• DNA polymerase

• primase

• helicase

Answer 1

In DNA replication, the Okazaki fragments on the lagging strand are joined together by DNA ligase.

Explanation:

On the lagging strand, DNA is synthesised as short Okazaki fragments; after RNA primers are removed and the gaps are filled, DNA ligase seals the remaining nicks by forming the phosphodiester bonds that join the fragments into a continuous strand.