Chronic infection with ________ may progress to hepatic cancer
A) HAV
B) HBV
C) HCV
D) HEV
E) both HBV and HCV
E
Bloom's Taxonomy: Knowledge
Section: Viral Diseases of the Digestive System
Learning Outcome: 23.20
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_____ different codons constitute the genetic code
a. 3 b. 20 c. 64 d. 120
How does sugar move through a plant?
1.Guard cells build up pressure, allowing dissolved sugars to enter the stomata. 2.Phloem in a sink region has lower pressure than in a source, so sugars flow out at the sink as water diffuses. 3.When the concentration of solute in the sieve tubes gets too low, osmosis allows water to flow in. 4.The pressure gradient allows dissolved sugars to reach high levels in the xylem, pushing them to a sink where they are released.
Female gonads are regulated by __________ hormone and luteinizing hormone. Fill in the blank(s) with the appropriate word(s)
The first antimicrobial widely available for treatment of bacterial infections was a synthetic compound which
A) was an antimetabolic analog. B) was a nucleotide analog. C) was an attachment antagonist. D) disrupted cytoplasmic membranes. E) interfered with bacterial cell wall synthesis.