Discussion
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- Question
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of
Options- A. high temperature and Ca++
- B. low temperature and Ca++
- C. high temperature and Mg++
- D. low temperature and Mg++
- Correct Answer
- low temperature and Ca++
- 1. 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
- 2. 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
- 3. DNA replication in eukaryotes occurs only in
Options- A. G1 phase
- B. S phase
- C. G2 phase
- D. M phase Discuss
- 4. 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
- 5. 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
- 6. In an agarose gel, DNA is moving from
Options- A. cathode to anode
- B. left to right
- C. anode to cathode
- D. A to B Discuss
- 7. Which of the following in DNA replication and transcription are common?
Options- A. incorporation of deoxynucleotides
- B. utilization the same enzyme
- C. synthesis in the 5'-3' direction
- D. none of the above Discuss
- 8. Which of the following does not occur during gluconeogenesis?
Options- A. The carboxylation of pyruvate to oxaloacetate
- B. The conversion of pyruvate to phosphoenolpyruvate (PEP)
- C. The decarboxylation of oxaloacetate to phosphoenolpyruvate
- D. The conversion of PEP to fructose bisphosphate Discuss
- 9. The function of gluconeogenesis is
Options- A. maintenance of blood glucose levels during starvation or a low carbohydrate diet
- B. recovery of lactate from fermentation and glycerol from fat breakdown
- C. a pathway for the utilization of amino acids
- D. all of the above Discuss
- 10. In the Glycolysis reaction, for each glucose conversion how many ATP's are produced?
Options- A. 4
- B. 2
- C. 1
- D. 3 Discuss
DNA Structure and Replication problems
Search Results
Correct Answer: right-handed double helix of antiparallel chains (?10 bp/turn)
Correct Answer: R. Franklin
Correct Answer: S phase
Correct Answer: 90 °C
Correct Answer: transposons
Correct Answer: cathode to anode
Correct Answer: synthesis in the 5'-3' direction
Correct Answer: The conversion of pyruvate to phosphoenolpyruvate (PEP)
Correct Answer: all of the above
Correct Answer: 2
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