what are persistent chronic viral infections?
What will be an ideal response?
persistent chronic viral infections are viruses that multiply at low levels and normally do not kill host cells.
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CAM plants keep stomata closed in the daytime, thus reducing loss of water. They can do this because they _____
A) fix CO2 into organic acids during the night B) fix CO2 into sugars in the bundle-sheath cells C) fix CO2 into pyruvate in the mesophyll cells D) use the enzyme phosphofructokinase, which outcompetes rubisco for CO2 E) use photosystem I and photosystem II at night
Based on their abundance and location in bacterial genomes, deduce which is LEAST likely to horizontally transfer into another bacterium while maintaining its identical function and regulatory roles
A) heat shock protein-encoding gene B) lac operon C) catabolic regulon D) quorum sensing operon
The general term used to describe the anabolic and catabolic reactions in a cell is
A. enzymatic. B. thematic. C. aerobic respiration. D. metabolism.
The earliest hominin fossils have been found in ____
a. Africa b. Asia c. Australia
d. the South Pacific e. Europe