E-PolyLearning

11. Type strain is used for referring to?
a. species
b. genus
c. family
d. division
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Answer: (a).species

12. The correct order of taxonomic groups from higher to lower rank is?
a. Kingdom—Order—Class—Family
b. Order—Class—Division—Family—Genus—Species
c. Kingdom—Order—Division—Family—Class—Genus—Species
d. Kingdom—Division—Class—Order—Family—Genus—Species
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Answer: (d).Kingdom—Division—Class—Order—Family—Genus—Species

13. % Similarity (%S) of each strain to every other strain is calculated by which method?
a. Intuitive Method
b. Numerical Taxonomy
c. Genetic Relatedness
d. DNA homology experiments
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Answer: (b).Numerical Taxonomy

14. Two organisms which are very closely related to each other have which of the following property?
a. similar mol% G+C values
b. different mol% G+C values
c. similar mol% G+C values and heteroduplexes are formed.
d. different mol% G+C values and heteroduplexes are not formed.
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Answer: (c).similar mol% G+C values and heteroduplexes are formed.

15. What are ribosomes composed of?
a. Proteins
b. DNA
c. RNA
d. Proteins and RNA
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Answer: (d).Proteins and RNA

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