Discussion
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- Question
When pO2 = Kd of myoglobin, the fractional saturation (YO2) is about
Options- A. 0.1
- B. 0.5
- C. 0.9
- D. 1.7
- Correct Answer
- 0.5
- 1. Promoters for tRNAs are located
Options- A. upstream from the start codon
- B. downstream from the start codon
- C. both (a) and (b)
- D. none of these Discuss
- 2. What is the end product of leucine metabolism?
Options- A. Acetyl-CoA
- B. Pyruvic acid
- C. Oxaloacetic acid
- D. Acetyl carnitine Discuss
- 3. Crick demonstrated that the genetic code involved three bases and suggested that the code was degenerated. What experimental technique Crick conducted to suggest genetic code degeneration?
Options- A. Gel electrophoresis
- B. Density gradient centrifugation
- C. Frameshift mutagenesis
- D. Restriction digests of the rII gene Discuss
- 4. A monoclonal antibody (mAb) specific for the 2,4-dinitrophenyl (DNP) hapten might also bind
Options- A. Leu or Ileu
- B. His or Pro
- C. Tyr or Phe
- D. Ser or Thr Discuss
- 5. Which of the following radioactive element is generally involved in RIA?
Options- A. Tritium
- B. Carbon-14
- C. Iodine-125
- D. All of these Discuss
- 6. The smooth endoplasmic reticulum (SER) is the site of
Options- A. phospholipid synthesis
- B. amino acid synthesis
- C. carbohydrate synthesis
- D. protein synthesis Discuss
- 7. Column efficiency is measured in terms of number of plates which is
Options- A. inversely related to the square of the peak width
- B. directly related to the square of the peak width
- C. inversely related to the cube root of the peak width
- D. directly related to the square of the peak width Discuss
- 8. What is a promoter?
Options- A. A specific sequence of DNA to which a catabolic repressor binds
- B. A specific sequence of DNA to which RNA polymerase binds
- C. A specific DNA sequence to which a restriction endonuclease binds
- D. None of the above Discuss
- 9. The binding of lac repressor to DNA could be considered to be analogous to
Options- A. competitive inhibition of an enzyme
- B. mixed-type inhibition of an enzyme
- C. uncompetitive inhibition of an enzyme
- D. allosteric effects in enzyme regulation Discuss
- 10. The PCR, polymerase chain reaction is becoming the method of choice for
Options- A. Alteration of gene
- B. screening gene
- C. sterilization of gene
- D. all of these Discuss
More questions
Correct Answer: downstream from the start codon
Correct Answer: Acetyl-CoA
Correct Answer: Frameshift mutagenesis
Correct Answer: Tyr or Phe
Correct Answer: All of these
Correct Answer: phospholipid synthesis
Correct Answer: inversely related to the square of the peak width
Correct Answer: A specific sequence of DNA to which RNA polymerase binds
Correct Answer: competitive inhibition of an enzyme
Correct Answer: screening gene
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