This hormone, in combination with auxin, stimulates cell division in plants and determines the course of differentiation.
A. abscisic acid
B. ethylene
C. gibberellin
D. cytokinin
E. auxin
Answer: D
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Transduction is the result of what "mistake" that viruses make during replication?
A. cutting up the bacterial chromosome B. cutting up the viral genome C. transcribing bacterial genes upon excision D. incorporating bacterial genes during excision E. inserting a viral DNA fragment into the bacterial chromosome
The three semicircular canals of the organs of equilibrium are ____ to each other
a. oriented at right angles b. parallel c. oriented at 45 degree angles d. oblique e. bound
Which of the following is a function of pasteurization?
A. Reducing the total microbial population B. Increasing the shelf life of the product C. Killing pathogenic microorganisms D. All of the choices are correct.
Margarine is made by hydrogenating vegetable oils so that they take on the consistency of butter. Propose a chemical basis for this change from a liquid to a solid.
A. Hydrogenation of fats changes them from unsaturated to saturated, which are more solid. B. Trans-fatty acid are changed from saturated to unsaturated, allowing them to solidify. C. Trans-fatty acids are changed from unsaturated to saturated, allowing them to solidify. D. Hydrogenation of fats changes them from saturated to unsaturated, which are more solid.