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