If there is no natural selection, the
A. gene frequencies in a population remain constant.
B. the frequency of dominant genes increases.
C. the frequency of dominant genes decreases.
D. the population will become extinct.
A. gene frequencies in a population remain constant.
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Okazaki fragments do which of the following?
A. Assist in forming the replication fork B. Bind to the oriC region C. Assist in the synthesis of DNA from the lagging strand D. Reform the double-helix following replication E. None of the answers are correct
Which antibody class acts as a B cell receptor?
a. IgG b. IgA c. IgE d. IgD e. IgM pentamer
Allosteric regulation generally results from ____.
A. excess substrates B. binding of regulatory molecules at sites other than the active sites C. a change in the temperature of the system D. a lack of coenzymes E. changes in pH
Amoxicillin is very effective for treating infections with Gram-positive bacteria but rarely causes side effects in humans. This is an example of
A) selective toxicity. B) narrow spectrum of action. C) a broad-spectrum antimicrobial. D) antibiotic resistance. E) altruism.