The mechanism of DNA replication is

A. semiconservative.
B. complementary.
C. intermediate.
D. dispersive.
E. conservative.


Answer: A

Biology & Microbiology

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Muscles that contract slowly and use less ATP to generate their force contain primarily:

A. small motor units. B. fast twitch fibers C. slow twitch fibers D. obtain their energy primarily through anaerobic glycolytic processes.

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Members of the genus Mycoplasma are pleomorphic and stain Gram-negative because they

A. lack cell walls. B. have sterols in their cytoplasmic membranes. C. lack cytoplasmic membranes. D. have mycolic acid in their cell walls. E. have a rudimentary cell wall.

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Which of the following reactions is synonymous with catabolism?

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Ras proteins are of interest to researchers because of their role in ____

a. reproduction b. linking plant hormones to germination c. the development of many types of cancer d. relieving cluster headaches e. eliciting the fight-or-flight response

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