Why are diseases such as rabies that have a wild animal reservoir so difficult to eradicate while other diseases such as brucellosis that reside in domestic animals have been virtually eradicated
What will be an ideal response?
Answer: The eradication of a disease requires that the pathogen be no longer transmitted. Because transmission of a disease such as rabies comes from wild animals that serve as reservoirs, all reservoirs would need to be removed for there to be no more transmission of the infectious agent. Immunizing or destroying all wild animals is not practical, so rabies remains very difficult to eradicate. Brucellosis and many other diseases are more easily eradicated because the reservoir is more easily controlled when, for example, they occur primarily in domesticated animals that can be tested, immunized, and or destroyed if infected.
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A. Diploid stem cells divide by mitosis to create a large population of precursor cells. B. The developing gametes remain connected to one another via cytoplasmic bridges. C. Polar bodies are produced. D. Four haploid gametes are produced. E. Production of gametes begins at puberty.
Coxiella burnetii reproduces in the ________ of a eukaryotic host cell.
A. nucleus B. phagolysosome C. cytoplasm D. endoplasmic reticulum
Plant cells grow primarily by increasing ____
a. cell number through cell division b. cell size through cell differentiation c. pressure and volume of the central vacuole d. the amount of extracellular matrix e. the concentration of lignin
If an error is made during replication that is not caught by DNA polymerase, the most likely is that _____
a. both strands of DNA will be mutated b. only the daughter strand will be mutated c. a mutation that causes cancer will occur d. DNA ligase will repair the mistake before a mutation occurs e. DNA replication will stall indefinitely