DNA replication Quiz
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5 questions, one answer each
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1. Which enzyme forms phosphodiester bonds in the new strand?
- A. DNA helicase
- B. DNA polymerase
- C. ATP hydrolase
- D. Amylase
2. What does DNA helicase break?
- A. Phosphodiester bonds
- B. Peptide bonds
- C. Hydrogen bonds between bases
- D. Glycosidic bonds
3. A template strand is GGCATA. What is the new strand?
- A. CCGTAT
- B. CCGUAU
- C. GGCATA
- D. TTACGC
4. Which result ruled out the conservative model in the Meselson-Stahl experiment?
- A. Two densities after two divisions
- B. One intermediate density after one division
- C. Heavy DNA after three divisions
- D. No DNA after one division
5. What does each DNA molecule contain after semi-conservative replication?
- A. Two new strands
- B. Two original strands
- C. A mixture of fragments of old and new DNA
- D. One original strand and one new strand