Prokaryotes are classified as belonging to two different domains. What are the domains?

A) Bacteria and Eukarya
B) Bacteria and Archaea
C) Archaea and Protista
D) Bacteria and Protista


B

Biology & Microbiology

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Inside nitrogen-fixing nodules, one N2 molecule is converted into two  

A.  N. B.  NO. C.  NO2. D.  NO3. E.  NH3.

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On Earth, solar energy is most intense at

A. the South Pole. B. the North Pole. C. 60° North latitude. D. the equator. E. 60° South latitude.

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Amino acids are delivered in their appropriate order by

A) mRNAs. B) RNA-induced silencing complexes (RISC). C) ribozymes. D) rRNAs. E) tRNAs.

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Frederick Griffith discovered

A. transformation. B. transposons. C. the lac operon. D. DNA. E. conjugation.

Biology & Microbiology