MICRO ORGANISMS MICRO BIOLOGY QUESTIONS

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41. All the following are basic properties of cells except
A. cells have nuclei and mitochondria
B. cells have a genetic programme and the means to use it
C. cells are capable of producing more of themselves
D. cells are able to respond to stimuli

Answer: Option A

Explanation:

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42. Which of the following microorganisms is classified as a member of archaebacteria?
A. Gyanobacteria B. Methanobacteria
C. Trichomonads D. Mycoplasma

Answer: Option B

Explanation:

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43. The idea of selective toxicity was first proposed by
A. Antony van Leeuwenhoek
B. Paul Ehrlich
C. Louis Pasteur
D. Alexander Fleming

Answer: Option B

Explanation:

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44. Which of the following sequences has helped in identifying eukaryotes, eubacteria and archeabacterial cell types?
A. Signature sequence
B. Signal sequence
C. Shine-Dalgarno sequence
D. Amino acid sequence

Answer: Option A

Explanation:

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45. Archeal cells usually do not contain peptidoglycan, rather contain pseudo-peptidoglycan which is mainly composed of
A. N-acetylmuramic acid and L-amino acids
B. N-acetylmuramic acid and D-amino acids
C. N-acetyltalosaminuronic acid and D-amino acids
D. N-acetyltalosaminuronic acid and L-amino acids

Answer: Option D

Explanation:

No answer description available for this question.
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