Discussion
Home ‣ Biochemistry ‣ DNA Structure and Replication Comments
- Question
For the DNA replication in eukaryotes, the cell cycle consists of
Options- A. G1, G2 and M phases
- B. S, G2 and M phases
- C. G1,S, G2 and M phases
- D. G2 and M phases
- Correct Answer
- G1,S, G2 and M phases
- 1. Which will require a higher temperature to denature?
Options- A. DNA with a high G-C content
- B. DNA with a high A-T content
- C. RNA with a high G-C content
- D. RNA with a high A-T content Discuss
- 2. What does ligase do during replication of DNA?
Options- A. Synthesizes the lagging strand
- B. Makes copies of mRNA from DNA
- C. Joins nicks in DNA strands
- D. Digests mRNA when it is no longer needed Discuss
- 3. An important difference between eukaryotic and prokaryotic DNA replication is
Options- A. eukaryotic DNA polymerases are faster
- B. more DNA polymerases are found in eukaryotes
- C. multiple origins of replication in eukaryotes
- D. RNA primers are not required in eukaryotes Discuss
- 4. The DNA is negatively super coiled, complexes to histone,
Options- A. HU
- B. HSP-1
- C. H-NS
- D. All of these Discuss
- 5. What is the name given to the points at which a DNA helix is unwound and new strands develop?
Options- A. Replication origins
- B. Replication forks
- C. Leading strands
- D. Okazaki fragments Discuss
- 6. DNA segments capable of moving from one place in the genome to another is known as
Options- A. transposons
- B. retrovirus
- C. introns
- D. moving elements Discuss
- 7. DNA with a G-C content of 50% will melt at approximately
Options- A. 60°C
- B. 70 °C
- C. 90 °C
- D. 100 °C Discuss
- 8. DNA replication in eukaryotes occurs only in
Options- A. G1 phase
- B. S phase
- C. G2 phase
- D. M phase Discuss
- 9. Who's X-ray work aided Watson and Crick in their discovery of the double helix?
Options- A. W.H. Bragg
- B. R. Franklin
- C. L. Pauling
- D. Leaderberg Discuss
- 10. The B-DNA structure found in solution is a
Options- A. left-handed double helix of antiparallel chains (10 bp/turn)
- B. right-handed double helix of antiparallel chains (?10 bp/turn)
- C. left-handed zig-zag helix of antiparallel chains (10 bp/turn)
- D. right-handed double helix of parallel chains (?10 bp/turn) Discuss
DNA Structure and Replication problems
Search Results
Correct Answer: DNA with a high G-C content
Correct Answer: Joins nicks in DNA strands
Correct Answer: multiple origins of replication in eukaryotes
Correct Answer: All of these
Correct Answer: Replication forks
Correct Answer: transposons
Correct Answer: 90 °C
Correct Answer: S phase
Correct Answer: R. Franklin
Correct Answer: right-handed double helix of antiparallel chains (?10 bp/turn)
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