West Nile virus has the following characteristics, except
A. it causes a hemorrhagic fever.
B. it causes a severe encephalitis in less than 1% of infected persons.
C. it is an arbovirus.
D. it is transmitted by a mosquito vector.
E. it is typically a flu-like illness.
Answer: A
You might also like to view...
The protein SOS is a guanine nucleotide exchange factor for Ras. SOS helps facilitate the exchange of GDP for GTP. What would be the effect of a mutation that inhibits the interaction between SOS and Ras?
A. GTP would remain bound to Ras, thereby keeping Ras constitutively active. B. GDP would remain bound to Ras, thereby preventing Ras activation. C. Ras would be more likely to hydrolyze GTP to GDP. D. There would be no effect.
What do modern non-African peoples have a bit of in their genome that Africans do not?
What will be an ideal response?
You buy a pie that contains a mixture of cherries and blueberries. When you cut the pie up, you notice that some slices have more blueberries than cherries and other slices have more cherries than blueberries. This uneven distribution of cherries and blueberries is most like the uneven distribution of
A) nuclei in a zygote. B) nuclei in an early embryo. C) nuclei in an egg. D) cytoplasmic determinants in a zygote. E) cytoplasmic determinants in an early embryo.
UV irradiation inactivates Cryptosporidium because _______.
A. it leads to a blocking of the action of DNA polymerase and RNA polymerase B. it blocks the action of lysozyme C. it denatures the proteins within the microorganism D. it removes thymine dimers within the DNA