NEET 2007 Biology question

The Okazaki fragments in DNA chain growth:

(1)polymerize in the direction and explain DNA replicationCorrect
(2)result in transcription
(3)polymerize in the direction and forms replication fork
(4)prove semi-conservative nature of DNA replication

Answer: (1)

Solution

DNA polymerase can add nucleotides only to a 3'-OH end, i.e. it always polymerises in the direction. On the template strand running (the lagging template), the new strand therefore has to be made discontinuously as short Okazaki fragments, each polymerised in the direction, which

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Question ID VK-089809