Discussion
Home ‣ Biochemistry ‣ DNA Structure and Replication Comments
- Question
Which of the following is not a structural motif in DNA binding proteins?
Options- A. bZIP
- B. helix-turn-helix
- C. TFIID
- D. zinc finger
- Correct Answer
- TFIID
- 1. First evident that DNA is genetic material comes from the experiment of Griffith is
Options- A. transduction
- B. transformation
- C. replication
- D. translation Discuss
- 2. What is the exact name of the classical Watson-Crick double helix DNA?
Options- A. A-DNA
- B. B-DNA
- C. Z-DNA
- D. X-DNA Discuss
- 3. The site on a bacterial chromosome that marks the initiation point for chromosome replication is called
Options- A. Ori
- B. a promoter
- C. Pro
- D. an initiation codon Discuss
- 4. Proteins which help to open the double helix for DNA synthesis are
Options- A. DNA helicases
- B. single stranded binding proteins
- C. ligase
- D. DNA topoisomerase Discuss
- 5. Which polymerase is active in DNA repairing
Options- A. Polymerase I
- B. Polymerase II
- C. Polymerase III
- D. none of these Discuss
- 6. An RNA primer is synthesized by
Options- A. DNA helicases
- B. ligase
- C. DNA topoisomerase
- D. primase Discuss
- 7. 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
- 8. The DNA is negatively super coiled, complexes to histone,
Options- A. HU
- B. HSP-1
- C. H-NS
- D. All of these Discuss
- 9. 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
- 10. 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
DNA Structure and Replication problems
Search Results
Correct Answer: transformation
Correct Answer: B-DNA
Correct Answer: Ori
Correct Answer: DNA helicases
Correct Answer: Polymerase II
Correct Answer: primase
Correct Answer: Replication forks
Correct Answer: All of these
Correct Answer: multiple origins of replication in eukaryotes
Correct Answer: Joins nicks in DNA strands
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