Air pollution researchers use which of the
following fungi to help them monitor air
pollution levels?
a. mycorrhizal fungi
b. mushrooms
c. yeast
d. lichens
e. rust fungi
D
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Histone deacetylase inhibitors are a class of drugs used as mood stabilizers and anti-epileptics that are also being researched for their efficacy as anti-cancer agents. Histone deacetylase inhibitors block the action of histone deacetylases, which remove acetyl groups from lysine residues in histone tails. How will blocking histone deacetylases affect gene expression in the cell?
A. Chromatin will become more tightly compact, and gene expression will be reduced. B. Chromatin will become more tightly compact, and gene expression will be increased. C. Chromatin will become more open, and gene expression will be reduced. D. Chromatin will become more open, and gene expression will be increased. E. Chromatin will become more methylated, and gene expression will be decreased.
What are the three types of bone cells?
What will be an ideal response?
Proteins synthesized in bacteria have which of the following at their amino terminal end?
a. N-formyl-methionine b. N-acetyl-adenine c. adenine triphosphate d. the AUG codon e. the UUU codon
Blood pumped from the right ventricle is ________ and enters the ________
A) oxygenated; pulmonary vein B) deoxygenated; aorta C) oxygenated; pulmonary trunk D) deoxygenated; coronary vein E) deoxygenated; pulmonary trunk