Which vitamin is fat soluble?
a. D
b. B1
c. B12
d. B6
e. C
a
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Lidocaine blocks voltage-gated Na+ channels. How would exposure to lidocaine affect nerve function?
A. Resting potential values would increase. B. Resting potential values would decrease. C. It would take longer to reach peak depolarization. D. Nerve depolarization would last for a longer period of time. E. None of the above are correct.
If a DNA fragment is 21,000 bp long, about how many DNA fragments would result after incubation with EcoRI?
A. 3 B. 5 C. 10 D. 20 E. 100
The heart valve guarding the entrance to the aorta is the ________ valve.
Fill in the blank(s) with the appropriate word(s).
A genus can best be defined as
A) a taxon composed of families. B) a taxon composed of one or more species and a classification level lying below family. C) a taxon belonging to a species. D) a taxon comprised of classes. E) the most specific taxon.