Refer to Figure 12-2. The segments labeled F are responsible for:
a. linking short DNA segments.
b. synthesizing the leading strand.
c. forming the replication fork.
d. initiating DNA synthesis.
e. unwinding the DNA double helix.
D
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Proteins called transcription factors are involved in ____ of transcription
a. both initiation and termination stages b. both initiation and elongation stages c. the termination stage d. the initiation stage e. the initiation, elongation, and termination stages
Which types of cells in the human body do not repair themselves if they have been damaged?
a. Skin b. Bone c. Blood d. Hair e. Nerve
The cowbird chick with its foster parent exemplifies an example of ____
a. commensalism b. brood parasitism c. competition d. mutualism e. parasitoidism
What happens to the excess fluid that leaves the capillaries at the venous end?
A. The excess fluid is collected in the lymphatic capillaries. B. The excess fluid is reabsorbed by the intestines. C. There is no excess fluid; 100% always returns to the capillary beds. D. The excess fluid will accumulate in the cells, causing them to rupture. E. The excess fluid is excreted by the kidneys.