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Home Microbiology Rhabdoviridae, Caliciviridae and Astroviridae See What Others Are Saying!
  • Question
  • Which of the following viruses is star-shaped in outline and transmitted by the faecal-oral route?


  • Options
  • A. Astrovirus
  • B. Calicivirus
  • C. Hepatitis E virus
  • D. Hepatitis D virus

  • Correct Answer
  • Astrovirus 


  • More questions

    • 1. The precursor of Penicillin G is

    • Options
    • A. phenoxy acetic acid
    • B. phenyl acetic acid
    • C. hydroxy phenyl acetic acid
    • D. none of these
    • Discuss
    • 2. Which of the following statement defines a replicon?

    • Options
    • A. A DNA molecule that encodes pili for conjugation
    • B. A DNA molecule that is able to replicate and be maintained
    • C. A DNA template which is used in transcription
    • D. The enzyme responsible for transposition
    • Discuss
    • 3. The final electron acceptor in the electron transport chain is

    • Options
    • A. CoQ
    • B. a cytochrome
    • C. FMN
    • D. oxygen
    • Discuss
    • 4. Bacteria which produces coagulase is

    • Options
    • A. S epidermidis
    • B. S saprophyticus
    • C. S aureus
    • D. S hominis
    • Discuss
    • 5. Which of the following three codons translate as serine (Ser)?

    • Options
    • A. AGU
    • B. CGA
    • C. CAU
    • D. AUG
    • Discuss
    • 6. During the first 10 minutes after injection of phage DNA, no phage can be recovered by disrupting the infected bacterium. This is termed as

    • Options
    • A. eclipse period
    • B. rise period
    • C. latent period
    • D. burst size
    • Discuss
    • 7. Which of the termination codon is called amber?

    • Options
    • A. UAA
    • B. UAG
    • C. UGA
    • D. AUG
    • Discuss
    • 8. Counter-immunoelectrophoresis is used for the detection of

    • Options
    • A. Meningococcal antigen
    • B. Hepatitis B surface antigen
    • C. Alpha-fetoprotein
    • D. All of these
    • Discuss
    • 9. A viral load test detects the

    • Options
    • A. provirus of HIV in infected cells
    • B. total amount of virus in the infected host
    • C. number of viruses being released by each infected cell
    • D. amount of bacteriophage being produced by E. coli cells
    • Discuss
    • 10. Changes in which of the following characterizes mutations?

    • Options
    • A. Phenotype
    • B. Genotype
    • C. Both (a) and (b)
    • D. None of these
    • Discuss


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