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

Biology & Microbiology

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Anabolic and catabolic pathways use different cofactors for similar reactions.

Answer the following statement true (T) or false (F)

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

Which of the following was NOT a kingdom in Linnaeus's taxonomy?

A. Animal B. Mineral C. Protist D. Plant

Biology & Microbiology