Why are neocallimastigomycetes being studied for biofuel production?
A. They can ferment glucose into alcohol.
B. They can generate methane.
C. They provide energy to power fermentation.
D. They can release fermentable sugars from structural polysaccharides.
E. They can extract pollutants from biofuel starting materials.
Answer: D
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Which of the following is mismatched regarding helicase activity?
A. ATP coupling stoichiometry: ATP consumed per base pair traversed B. step size: average number of base pairs covered per ATP C. processivity: numbers of base pairs replaced D. directionality: defined direction of movement E. oligomeric state: helicase functioning in multiples
A scientist is examining motile protozoa. He wishes to determine their direction of movement. Which of the following microscopic techniques is least likely to be used to view these cells?
A) light microscopy B) electron microscopy C) differential interference contrast microscopy D) fluorescence microscopy E) phase-contrast microscopy
Ionizing radiation is emitted at low levels by many natural objects, including some rocks and gases
Indicate whether the statement is true or false
Which of the following statements about homologous chromosome pairs is false?
a. They come from only one of the individual's parents. b. They usually contain slightly different versions of the same genetic information. c. They separate from each other during meiosis I. d. They synapse during meiosis I. e. Each contains two sister chromatids at the beginning of meiosis I.