The study of interactions among organisms and between organisms and their environment is known as ____
a. environmentalism
b. demography
c. ecology
d. biogeography
e. paleontology
ANSWER: c
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You transform bacteria with a plasmid carrying the ampicillin-resistance gene ampR. How would you determine which bacteria took up the plasmid?
A. Bacteria containing the plasmid would be able to grow in the absence of ampicillin. B. Bacteria containing the plasmid would be able to produce ampicillin. C. Bacteria containing the plasmid would turn blue. D. Bacteria containing the plasmid would be able to grow in the presence of ampicillin. E. Ampicillin-resistance is necessary for the plasmid DNA to get into the bacteria.
Blood doping, practiced by many athletes involved in the Tour de France as well as other sports, involves the illegal use of drugs to
A) increase circulation. B) increase the amount of oxygen carried in blood. C) decrease the amount of carbon dioxide in blood. D) elevate the rate of hemostasis. E) increase red bone marrow production.
Choose the one most appropriate answer for each.
A. Barr body B. Histone C. Repressor protein D. Promoter E. Master genes F. Homeotic genes G. Dosage compensation H. Enhancers
The outcome of the Gram stain is based on differences in the cell's
What will be an ideal response?