Viruses which infect many different tissues types are said to have a(n)
A) broad tropism.
B) narrow host range.
C) narrow tropism.
D) broad host range.
E) indeterminate host range.
Answer: A
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The question(s) below are included here for courses that are structured to include written exercises. This may also serve as an exercise for a recitation or discussion section where students work alone or in groups on more difficult conceptual problems
Core Concept 21.6 is also covered in other suites for the chapter, so these questions can be left out if they are not appropriate for your course. What are the fates of new mutations in DNA sequence? What forces are primarily responsible for determining the fate of a new mutation? What will be an ideal response?
Which immune system cells destroy infected or malignant host cells?
a. B lymphocytes b. T lymphocytes c. Natural killer cells d. Neutrophils
Studies have found that the positive-incentive value of various tastes is _________ in anorexic patients than in control patients.
(a) lower (b) higher (c) more likely to be absent (d) more variable
Which phrase expresses what photons lack versus what they have a precise amount of?
a. mass versus atoms b. atoms versus mass c. energy versus mass d. mass versus energy