NEET 2017 Biology question

During DNA replication, Okazaki fragments are used to elongate

(1)The leading strand towards replication fork
(2)The lagging strand towards replication fork
(3)The leading strand away from replication fork
(4)The lagging strand away from the replication forkCorrect

Answer: (4)

Solution

DNA polymerase can synthesise new DNA only in the direction. The leading strand is made continuously towards the replication fork, whereas the lagging strand is made discontinuously as short Okazaki fragments, each

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Question ID VK-092118