E-PolyLearning

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

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

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

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

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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