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- Question
Which of the following properties is due to lysogenic conversion by phages?
Options- A. Toxin production in Corynebacterium diphtheriae
- B. Toxin production in Clostridium botulinum types C and D
- C. Antigenic variation in Salmonella anatum
- D. All of the above
- Correct Answer
- All of the above
- 1. Starch is an energy storage material characteristic of
Options- A. chlorophyta
- B. chrysophyta
- C. phaeophyta
- D. rhodophyta Discuss
- 2. The number of members of the division Phaeophyta that live in freshwater habitats
Options- A. is greater than the number of members of the division Chloro-phyta that live in freshwater habitats
- B. is lesser than the number of members of the division Chlorophyta that live in freshwater habitats
- C. is equal to the number of members of the division Chlorophyta that live in freshwater habitats
- D. none of the above Discuss
- 3. The __________ is the vegetative body of algae.
Options- A. mycelium
- B. plasmodium
- C. pseudoplasmodium
- D. thallus Discuss
- 4. All algae possess
Options- A. nuclei
- B. chloroplasts
- C. Both (a) and (b)
- D. none of these Discuss
- 5. Characteristics used to place algae into divisions include all of the following except
Options- A. form of storage material
- B. flagella number and location
- C. accessor pigments used in photosynthesis
- D. all of the above Discuss
- 6. Which capsid symmetry is exhibited by most of the phages?
Options- A. Helical
- B. Icosahedral
- C. Complex
- D. None of these Discuss
- 7. The filamentous bacteriopohage infect male E. coli cells by attaching to
Options- A. lipopolysaccharide
- B. the cell wall
- C. the tip of the pilus
- D. the cell membrane Discuss
- 8. Which of the following is/are synthesized from late mRNA?
Options- A. Phage structural proteins
- B. Proteins that help with phage assembly without becoming part of the virion structure
- C. Proteins involved in cell lysis and phage release
- D. All of the above Discuss
- 9. __________ is specifically able to have a long-term relationship with the host known as lysogeny.
Options- A. Temperate virus
- B. Adsorbed virus
- C. RNA phage
- D. DNA phage Discuss
- 10. Contractile sheath of the tail is present in which of the following phages?
Options- A. T3
- B. T2
- C. P22
- D. All of these Discuss
Bacteriophages problems
Search Results
Correct Answer: rhodophyta
Correct Answer: is lesser than the number of members of the division Chlorophyta that live in freshwater habitats
Correct Answer: thallus
Correct Answer: Both (a) and (b)
Correct Answer: all of the above
Correct Answer: Icosahedral
Correct Answer: the tip of the pilus
Correct Answer: All of the above
Correct Answer: Temperate virus
Correct Answer: T2
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