Copies of the enzyme DNA polymerase work together to synthesize DNA. Why are two copies of the enzyme necessary at each replication fork? A. One copy breaks apart the original DNA molecule, and the other copy synthesizes two complementary strands. B. One copy synthesizes two complementary strands, and the second copy edits or corrects the new strands if necessary. C. Each copy attaches to one strand, and each synthesizes a complementary strand. D. Both copies attach to the same strand, where they work together to synthesize the complementary strand.

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Explanation:

Include a Claim, Evidence, Explanation, and Conclusion for full credit.

Cells were obtained from a patient with a viral infection. The DNA extracted from these cells consisted of two forms: double-stranded human DNA and single-stranded viral DNA. The base composition of these two forms of DNA are shown in the image.

Construct an argument based on evidence to determine which form was the viral DNA and which form was the human DNA.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

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