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DNA replicates semiconservatively. This means 50% of the parent DNA is retained in each new molecule/double helix. DNA unzips and allows 2 new sugar-phosphate backbones to be inserted, each 'reading' off one of the old strands. While 'reading' enzymes add the complementary base pairs, pairing up each new strand with one of the parent strands. Thus when it is finished replication, each new strand will be bonded to each old strand. there will be a 1:1 ratio of old strand to new strand, thus a 50% remain of parental strand in the new strand.

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14y ago
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11y ago

an exact copy of the parent DNA molecule, assuming there were no mutations.

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Q: When one DNA molecule is copied to make two DNA molecules the new DNA contains what percent of the parent DNA?
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Related questions

How is DNA copied semi-conservative replication?

The original DNA molecule is the template for the new DNA molecules.


How is DNA copied in semi conservation replication?

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How DNA copied in semi-conservative replication?

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