| 16. | If two organisms are distantly related and show no DNA homology there still may be similarity in their rRNA cistrons. |
| a. | True |
| b. | False |
| c. | May be |
| d. | Can't say |
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Answer: (a).True
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| 17. | Which of the following are characteristics of archaebacterial different from eubacteria? |
| a. | methane-producers |
| b. | extreme halophiles |
| c. | thermoacidophiles |
| d. | methane-producers,extreme halophiles,and thermoacidophiles |
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Answer: (d).methane-producers,extreme halophiles,and thermoacidophiles
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| 18. | Which among the following come under Gram-positive eubacteria? |
| a. | Clostridium |
| b. | Actinomyces |
| c. | Rhizobium |
| d. | Clostridium,Actinomyces |
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Answer: (d).Clostridium,Actinomyces
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| 19. | Which among the following kingdoms were proposed by Whittaker? |
| a. | Monera |
| b. | Protista,Fungi |
| c. | Plantae,Animalia |
| d. | Monera,Protista,Fungi,Plantae,Animalia |
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Answer: (d).Monera,Protista,Fungi,Plantae,Animalia
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| 20. | According to Bergey’s Manual of Systematic Bacteriology, prokaryotes that lack a cell wall belong to the group? |
| a. | Gracilicutes |
| b. | Firmicutes |
| c. | Tenericutes |
| d. | Mendosicutes |
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Answer: (c).Tenericutes
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