Question

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

Explanation:

The semiconservative model of DNA replication is defined by the unwinding of the double helix, where each original strand acts as a template to synthesize a complementary new strand. The first option describes the conservative model, and the third describes the dispersive model.

Answer:

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