Ring forms and a "Maltese cross" were observed in a blood smear. The vector that transmits this disease is a(n):
a. tick.
b. tsetse fly.
c. anopheles mosquito.
d. sandfly.
A
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Plasmid cloning vector DNA is usually introduced into bacterial hosts by
A. ligation. B. transformation. C. plasmolysis. D. transduction.
How do prions differ from viruses?
a) Unlike viruses, prions are infectious proteins. b) Unlike viruses, prions do not include any nucleic acids. c) Unlike a virus, a prion is a single molecule. d) all of the above
When you first move to a city, you can hardly sleep because of the nighttime traffic noise. Within a week, you don't notice it at all. This is an example of ________
Fill in the blank(s) with correct word
The function of BMP4 is to ________ while the function of gremlin is to ________ BMP4.
A. cause apoptosis; act as a catalyst for B. cause apoptosis; inhibit the function of C. induce mitosis; amplify expression of D. inhibit growth; amplify expression of E. induce mitosis; inhibit the function of