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What does it mean that DNA replication is semi-conservative?

A. It means that the old DNA is destroyed and only the new copies are kept.
B. It means that after replication the new strand is destroyed.
C. It means that after replication the old strand is destroyed and only the new strand is kept.
D. It means that each set of DNA contains an original strand and a new strand.

User El Mark
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1 Answer

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The answer is D.
Semi-conservative means that one strand is preserved as a template for the formation of the new strand.