The integration of an intact provirus sequence into the host genome is typical of
a) hepatitis B
b) human papilloma virus (HPV)
c) DNA viruses in general
d) retroviruses
Answer: d) retroviruses
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After eating a meal, food particles are broken down into simple sugars, which enter the
bloodstream. An increase in blood sugar levels leads to the release of insulin from the pancreas, and insulin in turn stimulates cells to take up glucose so that blood sugar levels decrease. This is an example of __________.
a. negative feedback b. positive feedback c. homeostasis d. both negative feedback and homeostasis
The major site of sensory processing in the brain is the
A. hypothalamus. B. brain stem. C. cerebellum. D. thalamus.
Cuticle (and/or cork) is found on the surfaces of all of the following except:
A. Leaves B. Green stems C. Woody roots D. Root hairs E. Woody stems
Membrane-bound sac, larger than a vesicle; usually functions in storage and can contain a variety of substances. In plants, the central vacuole fills much of the interior of the cell.
What will be an ideal response?