Methanogenic Archaea are

A. obligate anaerobes that produce methane.
B. obligate anaerobes that consume methane.
C. obligate aerobes that consume methane.
D. obligate aerobes that produce methane.


Answer: A

Biology & Microbiology

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Which of the following is not a function of the general transcription factor, TFIIH?

A. unwinding of the DNA near the transcriptional start site B. recruits nucleotide excision repair proteins to the site of a DNA lesion C. direct interaction with RNA polymerase II D. recruitment of TFIID to the promoter E. formation of the closed complex

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Cytoskeletal elements are assembled from ____

a. proteins b. phospholipids c. glycogen d. nucleotides e. triglycerides

Biology & Microbiology

Why have scientists begun using molecular systematics to study lineages among species?

a. Molecular systematics is faster and more accurate than previous ways of classifications. b. Molecular systematics is slower, but more accurate, than previous ways of classification. c. Molecular systematics is faster but less accurate than previous ways of classification. d. Molecular systematics is slower and less accurate and is being replaced as a classification method.

Biology & Microbiology

The leucine zipper has a unique structure compared to the other transcription factors because it is a(n) dimer

__________________ Indicate whether the statement is true or false.

Biology & Microbiology