Discussion
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- Question
Type III secretion systems are used to inject "effector" proteins directly into a host cell. Salmonella uses a type III secretion system to help the pathogen to
Options- A. survive the acid pH of the stomach
- B. secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine
- C. survive within macrophages
- D. activate T cells to proliferate and secrete cytokines
- Correct Answer
- survive within macrophages
- 1. The Shine-Dalgarno sequence is
Options- A. trailer sequence
- B. a stop codon
- C. the reading frame of a gene
- D. a short sequence that acts as a ribosomal binding site Discuss
- 2. The aerated submerged bacterial fermentation to produce vitamin B12 employs strains of
Options- A. Propionibacterium
- B. Pseudomonas
- C. Acetobacter
- D. both (a) and (b) Discuss
- 3. Cytoplasmic inclusions include
Options- A. ribosomes
- B. mesosomes
- C. fat globules
- D. all of these Discuss
- 4. Assimilative denitrification is done by
Options- A. plants
- B. fungi
- C. prokaryotes
- D. all of these Discuss
- 5. The cocci which forms a chain is
Options- A. Streptococci
- B. diplococci
- C. Staphylococci
- D. Tetracocci Discuss
- 6. The terms mycelium and hyphae are associated with
Options- A. algae
- B. fungi
- C. protozoa
- D. viruses Discuss
- 7. For most bacteria, the optimum pH for growth lies between
Options- A. 6.5-7.5
- B. 3.5-4.5
- C. 4.5-5.5
- D. 5.5-6.5 Discuss
- 8. A single polar flagella is known as
Options- A. monotrichous
- B. lophotrichous
- C. amphitrichous
- D. none of these Discuss
- 9. Which of the following is the study of the molecular organization of genomes, their information content and the gene products they encode?
Options- A. Genetics
- B. Ergonomics
- C. Genomics
- D. Bioinformatics Discuss
- 10. The enzyme, which hydrolyses the murein is
Options- A. perxoidase
- B. tannase
- C. lysozyme
- D. none of these Discuss
More questions
Correct Answer: a short sequence that acts as a ribosomal binding site
Correct Answer: both (a) and (b)
Correct Answer: all of these
Correct Answer: all of these
Correct Answer: Streptococci
Correct Answer: fungi
Correct Answer: 6.5-7.5
Correct Answer: monotrichous
Correct Answer: Genomics
Correct Answer: lysozyme
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