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J & K CETJ & K CET 2012Molecular Basis of Inheritance
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Solution:
DNA replication takes place during S-phase of interphase. Replication of 3→5 strand of a DNA molecule proceeds continuously its complementary strand therefore it produce leading strand, while the 5→3 strand proceeds discontinuousiy its complementary strand and called lagging strand. The small fragments in lagging strands are called Okazaki fragments.