Which statement describes the semiconservative model of DNA replication correctly? It proposes that the two nucleotide strands unwind and each serves as a template for a new DNA molecule. It proposes that the entire double‑stranded DNA molecule serves as a template for a whole new molecule of DNA. It proposes that both nucleotide strands break down into fragments, which then serve as templates for the synthesis of new DNA molecules.

Question

Biology

Luka Oconnell

11 August, 18:12

Which statement describes the semiconservative model of DNA replication correctly? It proposes that the two nucleotide strands unwind and each serves as a template for a new DNA molecule. It proposes that the entire double‑stranded DNA molecule serves as a template for a whole new molecule of DNA. It proposes that both nucleotide strands break down into fragments, which then serve as templates for the synthesis of new DNA molecules.

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Answers (2)

Know the Answer?

Nina Greene · Answer 1

It proposes that the two nucleotide strands unwind and each serves as a template for a new DNA molecule.

Gillian Humphrey · Answer 2

Answer: It proposes that the entire double‑stranded DNA molecule serves as a template for a whole new molecule of DNA.

Explanation:

In semi-conservative DNA replication:

- a parent double-stranded DNA splits in two.

- Each strand serves as template, and then read by the enzyme, DNA polymerase, to ensure accurate synthesis of a new daughter strand for both

- the newly synthesized strand contains nucleotides that are complimentary to free nucleotides present in the parent strand.

Thus, because the parent double strand is retained in the newly synthesized DNA, this model is described as semi-conservative