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Home ‣ Biochemistry ‣ Genetic Regulation Prokaryotes See What Others Are Saying!
- Question
A mutation in the tip binding site of the repressor would result in
Options- A. constitutive trp operon expression
- B. inducible trp operon expression
- C. no operon expression
- D. none of the above
- Correct Answer
- constitutive trp operon expression
- 1. Which of the following is not a significant biological oxidizing agent?
Options- A. FAD
- B. Fe3+
- C. O2
- D. NAD+ Discuss
- 2. What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?
Options- A. B
- B. H
- C. S
- D. None of these Discuss
- 3. The production or break down of __________ is often coupled with the metabolic reactions of biosynthesis and catabolism.
Options- A. aspirin
- B. DNA
- C. ATP
- D. CO2 Discuss
- 4. Two features of the tRNA molecule associated, in converting the triplet codon to an amino acid, are
Options- A. in the T Loop and D stem and loop
- B. in the anticodon loop and D stem loop
- C. in the anticodon loop and the 3' CCA end
- D. none of the above Discuss
- 5. Glycolytic pathway regulation involves
Options- A. allosteric stimulation by ADP
- B. allosteric inhibition by ATP
- C. feedback, or product, inhibition by ATP
- D. all of the above Discuss
- 6. Wilson's disease is an example of __________ and Menkes' syndrome is an example of __________ .
Options- A. zinc deficiency; zinc toxicity
- B. zinc toxicity; zinc deficiency
- C. copper deficiency; copper toxicity
- D. copper toxicity; copper deficiency Discuss
- 7. The growing polypeptide chain is released from the ribosomes when
Options- A. a chain terminating codon is reached
- B. a chain terminating tRNA binds to the ribosome
- C. the 7-methyl guanosine cap is reached
- D. the poly A tail is reached Discuss
- 8. Important function of cholesterol is to
Options- A. modulate fluidity
- B. enhance blood circulation
- C. prevent bile salts formation
- D. None of these Discuss
- 9. Which of the following are responsible causing the diseases?
Options- A. Pathogens
- B. T cells
- C. Lymphocytes
- D. Macrophages Discuss
- 10. PCR can be used in
Options- A. cloning
- B. sequencing
- C. medical diagnosis and forensic medicine
- D. all of the above Discuss
More questions
Correct Answer: Fe3+
Correct Answer: H
Correct Answer: ATP
Correct Answer: in the anticodon loop and the 3' CCA end
Correct Answer: all of the above
Correct Answer: copper toxicity; copper deficiency
Correct Answer: a chain terminating codon is reached
Correct Answer: modulate fluidity
Correct Answer: Pathogens
Correct Answer: all of the above
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