Step 2 in Figure 41-3 is accomplished by:
a. an influx of Ca2+.
b. an influx of Na2+.
c. an influx of K+.
d. an efflux of Na2+.
e. an efflux of K+.
B
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In the figure above, which is the template strand?
A) a B) b C) c D) d
Which group of bacteria is most famous for their diversity of antibiotics produced? Hypothesize an ecological role production of these antibiotics might have in such environments where they are not produced at high enough levels to kill bacteria
What will be an ideal response?
Which of the following is not one of the major cell types of lymphoid tissue?
What will be an ideal response?
DNA-containing viruses are easier to fight and treat than RNA viruses because:
a. antibiotics work only on DNA viruses, not on RNA viruses. b. RNA viruses have relatively stable genomes and so cannot be inactivated by mutagenic drugs. c. DNA viruses do not change rapidly.