The first federally approved gene therapy for humans was designed to treat ____
a. severe combined immune deficiency
b. Diabetes
c. cystic fibrosis
d. Hemophilia
e. Leukemia
ANSWER: a
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Fossil fuels ____
a. can be recycled b. are produced by living organisms c. are the organic remains of ancient organisms d. can reduce climate change e. release less energy than wood when they are burned
Photoreceptors are sensitive to what general type of sensory information?
A. sound B. electromagnetic radiation C. chemicals in the animal's environment D. tactile E. temperature
If the surface area of a cell increases by a factor of 100, the volume of that cell will
A) remain the same. B) increase by a factor of 100. C) increase by a factor of 1000. D) increase by a factor of 10. E) decrease by a factor of 100.
Which of the following statements about CRP is false?
a. It is a dimer. b. It is activated by a single molecule of cAMP. c. It is activated when cellular glucose levels are low. d. It binds to the lac O1 operator. e. It activates RNA polymerase.