The reduction of the second carbon in the nucleoside sugar to produce deoxyribose from ribose, requires the protein ________ as a reducing agent.
A. phosphatase
B. thioredoxin
C. ATP
D. ribonuclease
Answer: B
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Anabolic and catabolic pathways use different cofactors for similar reactions.
Answer the following statement true (T) or false (F)
The oldest spores from which bacteria have been successfully cultured were:
A. ten weeks old B. ten years old C. 7,000 years old D. 25 million years old E. 250 million years old
The statement "The virulence of many pathogens in humans may not be a target of selection itself, but rather an accidental by-product of selection on other traits" describes ________
A) the coincidental evolution hypothesis B) the shortsighted evolution hypothesis C) the trade-off hypothesis D) the energy-balance hypothesis
Which of the following was NOT a kingdom in Linnaeus's taxonomy?
A. Animal B. Mineral C. Protist D. Plant