During fermentation, ________ is recycled by transferring its electrons to a molecule other than oxygen.
Fill in the blank(s) with the appropriate word(s).
NAD+
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Predict the experimental outcome if Hershey and Chase had used a bacterial cell instead of a bacteriophage in the procedure.
A. Radioactivity would be detected in neither the supernatant nor the pellet. B. Radioactivity would be detected in the supernatant but not in the pellet. C. Radioactivity would be detected in the pellet but not in the supernatant. D. Radioactivity would be detected in both the supernatant and pellet.
Briefly describe how B cells are activated
What will be an ideal response?
A friend of yours visited a natural history museum that had a replica of the Archaeopteryx. She told you the characteristics of Archaeopteryx that she either noticed or read at the display. Which one did she misread?
A. Archaeopteryx had feathers, as do modern birds. B. Archaeopteryx lacked teeth, as do modern birds. C. Archaeopteryx had solid bones, unlike the hollow bones of modern birds. D. Archaeopteryx had wings as do modern birds. E. Archaeopteryx had a long tail, unlike modern birds.
What evolutionary event followed metabolic release of oxygen into the atmosphere and gave cells a significant selective advantage?
a. evolution of photosynthesis b. formation of multicellular organisms c. evolution of aerobic respiration mechanisms d. evolution of anaerobic metabolism e. oxidation