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DNA replication results in

  • A.two completely new DNA molecules
  • B.two DNA molecules such that each one contains a strand of the original
  • C.one new DNA molecules 1 old molecule
  • D.one new molecule of RNA

Answer: B

Correct answer: two DNA molecules such that each one contains a strand of the original

This is what semi-conservative means: the parental strands separate, each templates a new partner, and the two products each consist of one old strand and one new one. Neither daughter is wholly new, and neither is wholly old.

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