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- Question
Eukaryotic cell organelles first emerged
Options- A. from a specialized lineage of cells within the kingdom Protista
- B. when prokaryotes engulfed each other and became interdependent
- C. when bacteria made their first attempts at reproduction
- D. just before the origin of the animal and fungal kingdoms
- Correct Answer
- when prokaryotes engulfed each other and became interdependent
- 1. The development of hepatocellular carcinoma is associated with
Options- A. ground squirrel hepatitis virus
- B. hepatitis B virus
- C. woodchuck hepatitis virus
- D. all of the above Discuss
- 2. The method used for obtaining citric acid as fermentation product are commonly known as
Options- A. submerged aerated fermentation
- B. stationary tray fermentation
- C. both (a) and (b)
- D. none of these Discuss
- 3. The most efficient way to enclose a space is within a/an
Options- A. sphere
- B. cube
- C. icosahedron
- D. helix Discuss
- 4. Which of the following is not true of virions?
Options- A. Reproduce independently
- B. Contain DNA
- C. Contain RNA
- D. Are extracellular Discuss
- 5. The most common cause of cystitis (after Escherichia coli) in healthy sexually active women is
Options- A. Staphylococcus saprophyticus
- B. Proteus mirabilis
- C. Pseudomonas aeruginosa
- D. Klebsiella pneumoniae Discuss
- 6. Which of the following oncogenic viruses was first detected?
Options- A. Rous sarcoma virus.
- B. Epstein-Barr virus
- C. Herpes simplex virus type 2
- D. Human T cell leukaemia virus Discuss
- 7. The botulism intoxication occurs due to
Options- A. an enterotoxin
- B. neurotoxin
- C. mycotoxin
- D. all of these Discuss
- 8. Which of the following is an example of rod-shaped viruses having their capsomeres arranged helically and not in the stacked ring?
Options- A. Bateriophage M13
- B. Bateriophage MV-L2
- C. Bateriophage T2
- D. Bateriophage T4 Discuss
- 9. The 95% ethanol is equivalent to
Options- A. 190 proof
- B. 110 proof
- C. 170 proof
- D. 120 proof Discuss
- 10. The organism which obtain their energy from chemicals are designated as
Options- A. prototrophs
- B. chemotrophs
- C. organotrophs
- D. autotrophs Discuss
More questions
Correct Answer: all of the above
Correct Answer: both (a) and (b)
Correct Answer: icosahedron
Correct Answer: Reproduce independently
Correct Answer: Staphylococcus saprophyticus
Correct Answer: Rous sarcoma virus.
Correct Answer: neurotoxin
Correct Answer: Bateriophage M13
Correct Answer: 190 proof
Correct Answer: chemotrophs
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