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  • Question
  • Which of the following sequences has helped in identifying eukaryotes, eubacteria and archeabacterial cell types?


  • Options
  • A. Signature sequence
  • B. Signal sequence
  • C. Shine-Dalgarno sequence
  • D. Amino acid sequence

  • Correct Answer
  • Signature sequence 


  • Micro Organisms problems


    Search Results


    • 1. The three domain version of life on earth is based on the

    • Options
    • A. nucleic acid sequence data
    • B. morphological traits
    • C. metabolic traits
    • D. characteristics of the cell wall
    • Discuss
    • 2. Which of the following is/are included in Kingdom Prokaryotae?

    • Options
    • A. Bacteria
    • B. Protozoa
    • C. Fungi
    • D. All of these
    • Discuss
    • 3. Which of the following may account for the small size of the cells?

    • Options
    • A. The rate of diffusion
    • B. The surface area/volume ratio
    • C. The number of mRNAs that can be produced by the nucleus
    • D. All of the above
    • Discuss
    • 4. Cell theory includes all of the following except

    • Options
    • A. all organisms are composed of one or more cells
    • B. the cell is the most primitive form of life
    • C. the cell is the structural unit of life
    • D. cells arise by division of preexisting cells
    • Discuss
    • 5. Which of the following is a characteristic unique to the ciliates?

    • Options
    • A. Use of cilia as a sensory function
    • B. Presence of both a macronucleus and several micronuclei
    • C. Both (a) and (b)
    • D. Possess a light-detecting eye spot
    • Discuss
    • 6. The oldest eukaryotic organisms are considered to be

    • Options
    • A. diplomonads like Giardia
    • B. archaea
    • C. fungi
    • D. animals
    • Discuss
    • 7. The binomial name of a microbe is composed of

    • Options
    • A. its kingdom and genus names
    • B. its genus name and a species modifier
    • C. its family and class names
    • D. its genus and species names
    • Discuss
    • 8. The individual best remembered for bringing microbes to the world is

    • Options
    • A. Robert Hooke
    • B. Antony Van Leeuenhoek
    • C. Robert Koch
    • D. Masaki Ogata
    • Discuss
    • 9. Which were the investigators lived at the same time?

    • Options
    • A. Koch and Pasteur
    • B. Darwin and Woese
    • C. Van Leeuenhoek and Ricketts
    • D. Berg and Hooke
    • Discuss
    • 10. All of the following individuals contributed to cell theory except

    • Options
    • A. Robert Hooke
    • B. Matthias Schleiden
    • C. Theodor Schwann
    • D. Rudolf Virchow
    • Discuss


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