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1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

16. Cell Division

DNA Replication

Cell Biology

16. Cell Division

DNA Replication

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Multiple Choice

Which of the following proteins are responsible for unwinding the DNA double helix for replication?

DNA helicases

Single stranded binding proteins

DNA Topoisomerases

Sliding Clamp

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Verified step by step guidance

Understand the process of DNA replication, which involves the unwinding of the DNA double helix to allow each strand to be copied.

Identify the role of DNA helicases, which are enzymes that unwind the DNA double helix by breaking the hydrogen bonds between the nucleotide base pairs.

Recognize the function of single-stranded binding proteins, which stabilize the unwound DNA strands to prevent them from re-annealing or forming secondary structures.

Consider the role of DNA topoisomerases, which alleviate the torsional strain that builds up ahead of the replication fork due to the unwinding process.

Understand the function of the sliding clamp, which helps to hold the DNA polymerase in place during strand elongation, but does not directly participate in unwinding the DNA.