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Home ‣ Biochemistry ‣ DNA Structure and Replication See What Others Are Saying!
- Question
One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?
Options- A. Conservative theory
- B. Dispersive theory
- C. Semi-conservative theory
- D. Evolutionary theory
- Correct Answer
- Dispersive theory
- 1. In the normal breakdown of phenylalanine, it is initially degraded to
Options- A. fumarate
- B. tyrosine
- C. lysine
- D. phenylpuruvate Discuss
- 2. Carbon fixation requires the expenditure of ATP molecules which is generated by
Options- A. formation of glucose during the Calvin cycle
- B. replenishment of chlorophyll
- C. ETS (electron transfer system) during the light reactions
- D. none of the above Discuss
- 3. The maximum energy per gram on oxidization is yielded from
Options- A. fat
- B. protein
- C. glycogen
- D. starch Discuss
- 4. Nucleic acids can be analyzed experimentally by their
Options- A. molecular weight
- B. absorption of visible light
- C. absorption of uv light
- D. none of these Discuss
- 5. Protein folding is
Options- A. automatic, mediated by the protein itself
- B. mediated by other proteins called chaperones
- C. mediated by the ribosomes
- D. none of the above Discuss
- 6. Which of the following provide specific defense against viruses and bacteria?
Options- A. T cells
- B. B cells
- C. Complement
- D. inflammation Discuss
- 7. What was the first protein whose complete tertiary structure was determined?
Options- A. Lysozyme
- B. Myoglobin
- C. Pancreatic ribonuclease
- D. Pancreatic DNase Discuss
- 8. Which of the following cell organelles are expected to be associated with motor proteins?
Options- A. Smooth ER
- B. Vesicles
- C. Plasma membrane
- D. Chloroplasts Discuss
- 9. A simple harmonic oscillator may absorb energy
Options- A. at anytime.
- B. when the frequencies match exactly
- C. when the amplitudes are the same.
- D. at no time. Discuss
- 10. Which of the following statements is incorrect?
Options- A. Protein G contains both a-helix and P-sheet
- B. Protein G contains only a-helix
- C. Fatty acid binding protein contains largely P-sheet
- D. Hemoglobin contains four sub-units Discuss
More questions
Correct Answer: tyrosine
Correct Answer: ETS (electron transfer system) during the light reactions
Correct Answer: fat
Correct Answer: absorption of uv light
Correct Answer: mediated by other proteins called chaperones
Correct Answer: B cells
Correct Answer: Myoglobin
Correct Answer: Vesicles
Correct Answer: when the frequencies match exactly
Correct Answer: Protein G contains only a-helix
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