Refer to Figure 12-2. The correct designation for the DNA strand labeled C is:
a. the leading strand.
b. 3?.
c. Okazaki fragments.
d. polymerase.
e. a strand serving as a template.
E
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In DNA, the pyrimidines are ____
a. thymine and cytosine b. adenine and cytosine c. adenine and guanine d. thymine and adenine e. guanine and thymine
Before the publication of Charles Darwin's On the Origin of Species, what was the prevailing public consensus regarding species evolution?
A. That species evolved through physical changes that led to success B. That species were permanent and unchanging C. That species were modified over time but did not change into new species D. That species evolved by means of natural selection
Impulses conducted along the transverse tubules of the muscle fiber stimulate
A. the release of ATP. B. the binding of actin to the Z lines. C. tropomyosin and troponin binding. D. the release of calcium ions. E. the release of acetylcholine.
Solution "A" has a solute concentration of 10% while solution "B" has a solvent concentration of 80%. If they are separated by a selectively permeable membrane
A. the net direction of water movement will be from solution "A" to solution "B". B. the net direction of water movement will be from solution "B" to solution "A". C. there will be no net movement of water. D. the system is in dynamic equilibrium to begin with.