JoelaDercon JoelaDercon

24-11-2015
Biology

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explain why DNA must be replicated before mitosis and the role of helicase in DNA replication

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MonikaMole1421 MonikaMole1421

24-11-2015

DNA must be replicated before mitosis so that all new cells produced will contain all the DNA of the original cell. The DNA helicase starts the process of DNA replication by unzipping DNA strands to expose nucleotides and give space for attachment.

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