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- Question
Which of the following methods is most likely to be quantitative?
Options- A. Dilution and plating
- B. Gram staining
- C. Wet mount
- D. None of these
- Correct Answer
- Dilution and plating
- 1. Which of the following bacterial genera (that produces endospore) have medical importance?
Options- A. Clostridium
- B. Bacillus
- C. Both (a) and (b)
- D. None of these Discuss
- 2. Site in the ribosome from which the tRNA donates amino acids to the growing polypeptide chain is
Options- A. P site
- B. O site
- C. T site
- D. A site Discuss
- 3. A musty or muddy odor of the fish is attributed to
Options- A. the growth of Streptomyces species in the mud at the bottom of the body of water
- B. the mud at the bottom of the body of water
- C. the growth of Pseudomonas species in the mud at the bottom of the body of water
- D. none of the above Discuss
- 4. What can be coated to the plastic dish if an ELISA is performed to directly detect polio virus?
Options- A. Patient serum
- B. Anti-polio antibody
- C. Polio capsid protein
- D. Colored substrate Discuss
- 5. ATPase
Options- A. synthesizes ATP, coupled to transfer of extracellular protons into the cell
- B. extrudes protons from the cell coupled to the hydrolysis of ATP to ADP
- C. is the enzyme that incorporates ATP into messenger RNA
- D. carries out each of the reactions indicated in (a) and (b) Discuss
- 6. Fluorescence microscopy can be used for the diagnosis of
Options- A. Subacute sclerosing panencephalitis
- B. Herpes simplex encephalitis
- C. Rabies
- D. All of these Discuss
- 7. The next to last step in peptidoglycan biosynthesis is
Options- A. synthesis of the NAM-peptide subunit
- B. removal of the subunit from bactoprenol
- C. linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain
- D. cross-linking the peptide side chains of peptidoglycan Discuss
- 8. Radioisotopes are frequently used in the study of cells. Assume a culture of E. coli is grown in a culture medium containing radioactive phosphorous. At the end of 48 hours, it is expected to find the radioactive label located in
Options- A. enzymes
- B. RNA
- C. phospholipids
- D. all of these Discuss
- 9. Which of the following is recommended for the improvement in flavor during ageing of beef under controlled conditions?
Options- A. Thamnidium
- B. Rhizopus
- C. T. elegans
- D. M. mucedo Discuss
- 10. A nonsense mutation introduced into the DNA sequence of a gene may
Options- A. cause premature termination of the mRNA
- B. shorten the length of the protein encoded by the gene
- C. have no effect on the transcript or protein made
- D. cause a shift in reading frame Discuss
More questions
Correct Answer: Both (a) and (b)
Correct Answer: P site
Correct Answer: the growth of Streptomyces species in the mud at the bottom of the body of water
Correct Answer: Anti-polio antibody
Correct Answer: carries out each of the reactions indicated in (a) and (b)
Correct Answer: All of these
Correct Answer: linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain
Correct Answer: all of these
Correct Answer: Thamnidium
Correct Answer: shorten the length of the protein encoded by the gene
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