Discussion
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- Question
The penetration of animal viruses into attached cells occur by mechanisms consisting of engulfment of whole virions by the cells in a phagocytic process called
Options- A. vitropexis
- B. viropexis
- C. ectodesmata
- D. vivopexis
- Correct Answer
- viropexis
- 1. Crystal violet blood agar is a selective medium for
Options- A. ?-haemolytic streptococci
- B. Staphylococcus aureus
- C. Corynebacterium diphtheriae
- D. Mycobacterium tuberculosis Discuss
- 2. Which of the following is bactericidal?
Options- A. Membrane filtration
- B. Ionizing radiation
- C. Freeze-drying
- D. Deep freezing Discuss
- 3. Which of the following characteristic of the Rotavirus was important for the construction of the Rotashield vaccine?
Options- A. The possession of a segmented RNA genome
- B. A limited number of capsule types
- C. The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings
- D. The ability of the Rotavirus to be transmitted faster Discuss
- 4. In the human disease cholera, what is it that actually ends up killing the victim?
Options- A. Faulty carrier proteins
- B. Dehydration and loss of nutrients
- C. Too little water in the food stream
- D. the toxin produced by the bacterium Discuss
- 5. Non bacterial ropiness or sliminess in milk and milk products may be due to the
Options- A. stringiness caused by mastitis and in particular by fibrin and leucocytes from the cow's blood.
- B. sliminess resulting from the thickness of the cream
- C. stringiness due to thin films of casein or lactalbumin during cooling
- D. all of the above Discuss
- 6. Which of the following is commonly used as Gram's decolouriser?
Options- A. Ethyl alcohol
- B. Methyl alcohol
- C. Acetone
- D. A mixture of ethyl alcohol and acetone Discuss
- 7. Canned poultry is more often spoiled by
Options- A. putrefactive than by Saccharolytic Clostridia
- B. Saccharolytic Clostridia than by putrefactive
- C. Saccharomyces species
- D. Micrococcus species Discuss
- 8. The phenomenon of commensalism refers to a relationship between organisms in which
Options- A. one species of a pair benefits
- B. both the species of a pair benefit
- C. one species of a pair is more benefited
- D. none of the above Discuss
- 9. The bread mold Rhizopus stolonifer belongs to which of the following fungal divisions?
Options- A. Ascomycota
- B. Deuteromycota
- C. Oomycota
- D. Zygomycota Discuss
- 10. Which of the following structure is absent in eukaryotic cells?
Options- A. Mitochondria
- B. Chloroplasts
- C. Golgi structure
- D. Mesosome Discuss
More questions
Correct Answer: ?-haemolytic streptococci
Correct Answer: Ionizing radiation
Correct Answer: The possession of a segmented RNA genome
Correct Answer: Dehydration and loss of nutrients
Correct Answer: all of the above
Correct Answer: A mixture of ethyl alcohol and acetone
Correct Answer: putrefactive than by Saccharolytic Clostridia
Correct Answer: one species of a pair benefits
Correct Answer: Zygomycota
Correct Answer: Mesosome
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