If scientists are trying to use what they know about HSV to devise a means of protecting other people from being infected, which of the following would have the best chance of lowering the number of new cases of infection?
A) vaccinate of all persons with preexisting cases of HSV
B) interfere with new viral replication in preexisting cases of HSV
C) treat HSV lesions to shorten the breakout
D) educate people about avoiding sources of infection
B
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Cholera is an example of a pandemic disease that
A) has multiple wild animal reservoirs and is thus difficult to eradicate. B) spreads from a common source and could be controlled with adequate clean water and waste sanitation measures. C) is spread through direct contact and has only a human reservoir. D) has recently emerged due to overcrowding in urban centers.
What is a possible explanation for why a population may not be in Hardy-Weinberg equilibrium?
A. There are more than two alleles for a trait. B. One allele for a trait is fixed in the population. C. Evolution is occurring on a trait in the population. D. Hardy-Weinberg does not work for all traits. E. The alleles for a trait being examined exhibit incomplete dominance.
The most accurate distinction between learning and memory is that
A. learning is the process of acquiring new information while memory is the retention of that information over time. B. memory does not require prior learning, while new learning cannot occur without it. C. both learning and memory are the process of acquiring new information. D. both learning and memory are the retention of information over time. E. memory is the process of acquiring new information while learning is the retention of that information over time.
Which organism spends the greatest portion of its life cycle in a diploid phase?
a. plant b. fungus c. animal d. algae