If a person who has never been infected with the varicella-zoster virus comes in contact with a person who has shingles, they will come down with
A. herpes keratitis.
B. chickenpox.
C. herpes labialis.
D. infectious mononucleosis.
E. shingles.
Answer: B
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Knowing an individual's DNA sequence may be beneficial because:
A. it makes it possible to predict susceptibility to disease. B. it makes it possible to predict response to medications. C. it makes it possible to predict physical differences. D. it makes it possible to predict the occurrence of a disease. E. All of the answer options are correct.
What does it mean to say that an allele is "fixed" in the population?
A. It has been repaired by typical mechanisms in the cell. B. It is an indication of no genetic variation at that locus in the population. C. It is an indication of low genetic variation at that locus in the population. D. It is an indication of high genetic variation at that locus in the population. E. It is an indication that locus cannot undergo mutation.
Bacteria that do not have a fixed shape are said to be ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following digestive system structures is greatly expanded in size in koalas, resulting in a very large surface area for prokaryotes to digest plant material?
A) stomach B) rumen C) cecum D) gall bladder