lecture 2.pdf - Genetics lecture 2 June 6 2017 DNA...

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Genetics lecture 2 June 6, 2017
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2 DNA Replication As cells pass through the cell cycle, the DNA must be copied, or replicated , before mitosis and cytokinesis. DNA is replicated during S (DNA synthesis) phase of the cell cycle. When the structure of DNA was first worked out, its double helical structure immediately suggested how replication may occur: each of the two strands would be copied.
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