Microbiology Objective Questions { Micro Organisms }

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15. Mycoplasmas, rickettsiae, and chlamydiae are

A. types of fungi

B. small bacteria

C. species of protozoa

D. forms of viruses

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16. Which of the following structure is absent in eukaryotic cells?

A. Mitochondria

B. Chloroplasts

C. Golgi structure

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17. Who was the inventor of the Petri dish?

A. R.J. Petri, an assistant of R. Koch

B. A famous French cook

C. Italian glass blower from Petri, Italy

D. None of the above

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18. Which one is not studied in microbiology?

B. Animal behaviour

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19. A characteristic of protein synthesis in both the archaea and eukarya is

A. transcription and translation are coupled

B. translation is inhibited by diphtheria toxin

C. proteins are synthesized from D-, rather than L-, isomers of amino acids

D. the initiator tRNA is charged with N-formyl-methionine

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20. Cell theory includes all of the following except

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

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21. The five-kingdom system of classification was set up by The five-kingdom system of classification was set up by

A. Louis Pasteur

B. Robert Whittaker

D. Masaki Ogata

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