Discussion
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- Question
The hyphae of mold are
Options- A. submerged
- B. aerial
- C. vegetative
- D. all of these
- Correct Answer
- all of these
- 1. Which of these spores are characteristic of the black bread mold Rhizopus?
Options- A. Arthrospore and Ascospore
- B. Ascospore and Zygospore
- C. Arthrospore and Blastospore
- D. Sporangiospore and Zygospore 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 phospholipids present in cytoplasm membrane of the archaeo-bacteria is
Options- A. phosphoglycerides
- B. polyisoprenoid
- C. polyisoprenoid branched chain lipids
- D. none of the above Discuss
- 4. 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 Discuss
- 5. T cell receptors (or TCR) on CD4+ T cells
Options- A. recognize peptides not associated with MHC molecules
- B. recognize peptides associated with MHC class I molecules
- C. recognize peptides associated with MHC class II molecules
- D. are secreted out into the environment to bind antigens Discuss
- 6. All membranes of free-living organisms have phospholipid bilayers, but exception is
Options- A. bacteria
- B. fungi
- C. archaea
- D. protozoa Discuss
- 7. Marinated (sour pickled) fish should not have spoilage problems unless
Options- A. the acid content is very high
- B. the acid content is low enough
- C. the acid content is moderate
- D. none of the above Discuss
- 8. Which family has received most interest in their development as a biological control agent against insects?
Options- A. Reoviridae
- B. Baculoviridae
- C. Iridoviridae
- D. Poxviridae Discuss
- 9. Which of the following media is selective for Salmonella?
Options- A. Thiosulphate citrate bile salt agar
- B. Wilson and Blair's brilliant-green bismuth sulphite agar medium
- C. Bile salt agar
- D. All of the above Discuss
- 10. __________ is an environment like __________ where microorganisms are functioning in an extremely thin film of water and where oxygen-containing air is close to them.
Options- A. low oxygen diffusion environment; soils
- B. high oxygen diffusion environment; soils
- C. low oxygen diffusion environment; lakes
- D. high oxygen diffusion environment; lakes Discuss
More questions
Correct Answer: Sporangiospore and Zygospore
Correct Answer: is lesser than the number of members of the division Chlorophyta that live in freshwater habitats
Correct Answer: polyisoprenoid branched chain lipids
Correct Answer: All of the above
Correct Answer: recognize peptides associated with MHC class II molecules
Correct Answer: archaea
Correct Answer: the acid content is low enough
Correct Answer: Baculoviridae
Correct Answer: Wilson and Blair's brilliant-green bismuth sulphite agar medium
Correct Answer: high oxygen diffusion environment; soils
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