DNA can be transferred from one bacterial cell to another by ____
a. conjugation only
b. transformation only
c. conjugation and transformation only
d. conjugation and transduction only
e. conjugation, transformation, and transduction
ANSWER: e
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Crassulacean acid metabolism (CAM) is a form of photosynthesis that
A. encourages the light-independent reactions to take place at night. B. allows photosynthesis to take place without water. C. encourages the light-dependent reactions to take place at night. D. allows photosynthesis to take place without carbon dioxide.
Which of the following herpesvirus infections would be potentially most serious?
a. a whitlow b. ocular herpes c. shingles d. cytomegalovirus in fetuses
Based on what we know about the version of the EPAS1 gene that most Tibetans possess, what can we likely infer about the ancient Denisovan hominins?
A. They had light skin B. They had dark skin C. They lived at low altitudes, likely close to sea level D. They lived at high altitudes
A short chain of sugar attached to a protein molecule on the plasma membrane is called
A. a glycocalyx. B. a glycoprotein. C. a protosugar. D. a glycolipid. E. a protomembrane.