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DNA replication is a complex and multi step process, which require enzymes, protein and metal ions. In eukaryotes the replication of DNA occurs in the S phase of cell cycle and it takes place in the nucleoplasm. In prokaryotes, replication occurs in the nucleus. It takes place before the cell division. Nucleoid is a made up of DNA molecule. It can be linear or circular. In virus, nucleic acid can be DNA or RNA.
(i) Which enzymes are required for DNA replication?
(ii) Where does DNA replication occur in bacteria and eukaryotes?
(iii) From where DNA replication start?
(iv) How many types of DNA polymerase enzymes are present?

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