The topoisomerase_________ introduces positive supercoils in DNA, which stabilizes DNA and prevents the DNA helix from denaturing at high temperatures.
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Q20: The predominant cation in the Great Salt
Q21: Retinal is found in
A) bacteriorhodopsin.
B) halorhodopsin.
C) both
Q22: The rRNA gene sequences of hyperthermophilic Archaea
Q23: _is a strict anaerobe with an optimum
Q24: Some of the largest naturally occurring plasmids
Q26: Methanogens
A) utilize methane as an energy source.
B)
Q27: Nitrifying Archaea such as Nitrosopumilus maritimus use
Q28: Compounds that counteract the tendency of the
Q29: A chemoorganotroph growing optimally at 55°C and
Q30: Most known methanogens are nonhalophilic
A) thermophiles.
B) psychrophiles.
C)
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