The only fungi to produce cells with flagella are:
A. chytrids
B. choanflagellates
C. yeasts
D. conidia
E. bread molds
A. chytrids
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Over-the-counter medications for acid reflux or heartburn block the production of stomach acid. Which of the following cells are directly affected by this medication?
A) goblet cells B) chief cells C) parietal cells D) smooth muscle cells
Which of the following is most likely to have a small protein called ubiquitin attached to it?
A) a cyclin protein, that usually acts in G1, in a cell that is in G2 B) a cell surface protein that requires transport from the ER C) an mRNA leaving the nucleus to be translated D) a regulatory protein that requires sugar residues to function properly E) an mRNA produced by an egg cell that will be retained until after fertilization
A DNA specimen that contains 30% guanine has ________ thymine.
A. 15% B. 20% C. 30% D. 60% E. The amount of thymine cannot be determined.
What type of mutagen would you use if you wanted to study the effect of pyrimidine dimers in causing cancer?
What will be an ideal response?