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- Question
Which of the following is correct?
Options- A. Peroxisomes have a single boundary membrane
- B. Peroxisomes contain enzymes that degrade fatty acids and amino acids
- C. The byproduct of given reactions in (b) is toxic to cells
- D. All of the above
- Correct Answer
- All of the above
- 1. The role of primase is to
Options- A. dismantle RNA primer
- B. cleave and unwinds short sections of DNA ahead of the replication fork
- C. proofread base pairing
- D. synthesize an RNA primer to begin the elongation process Discuss
- 2. The first protein complex to bind to the TATA box is
Options- A. transcription factor IIA
- B. transcription factor IIB
- C. transcription factor IID
- D. all of these Discuss
- 3. In an SDS-PAGE
Options- A. proteins are denatured by the SDS
- B. proteins have the same charge-to-mass ratio
- C. smaller proteins migrate more rapidly through the gel
- D. all of the above Discuss
- 4. Which of the following is incorrect?
Options- A. In DNA double helix, two strands of the DNA are bound with each other with the bases
- B. Adenine always pairs with thymine
- C. Guanine always pairs with the cytosine
- D. None of the above Discuss
- 5. Alum is an effective adjuvant because it
Options- A. disaggregates the antigen.
- B. is immunogenic for stem cells
- C. is immunogenic for T cells
- D. slows the release of antigen Discuss
- 6. Which of the following forces is the most unfavorable for protein folding?
Options- A. Conformational entropy
- B. Hydrophobic interactions
- C. Vander Waals interactions
- D. Electrostatic interactions Discuss
- 7. Which of the following is the most correct?
Options- A. Charged amino acids are never buried in the interior of a protein
- B. Charged amino acids are seldom buried in the interior of a protein
- C. All hydrophobic amino acids are buried when a protein folds
- D. Tyrosine is only found in the interior of proteins Discuss
- 8. The chemical, typically released by the body in an allergic response is
Options- A. histamine
- B. allergens
- C. antihistamines
- D. perforins Discuss
- 9. In oxygenic photosynthesis, the electron donor is
Options- A. water
- B. oxygen
- C. NADH
- D. NADPH Discuss
- 10. In lysozyme catalysis, which of the following does not contribute?
Options- A. The abnormally high pKa of Glu35
- B. The strained conformation of the D sugar
- C. Formation of a covalent intermediate at Asp52
- D. Formation of a covalent intermediate at Ser195 Discuss
More questions
Correct Answer: synthesize an RNA primer to begin the elongation process
Correct Answer: transcription factor IID
Correct Answer: all of the above
Correct Answer: None of the above
Correct Answer: is immunogenic for T cells
Correct Answer: Conformational entropy
Correct Answer: Charged amino acids are seldom buried in the interior of a protein
Correct Answer: histamine
Correct Answer: water
Correct Answer: Formation of a covalent intermediate at Ser195
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