The genetic code is DIFFERENT in nearly all organisms.
a. true
b. false
Answer: b. false
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Which of the following can be used as a vector for gene therapy?
A. Liposomes B. Parvoviruses C. Adenoviruses D. Retroviruses E. All of the answers are correct
A typical human cell contains
A) one copy of each of 3.2 billion different microRNAs. B) one copy of each of about 20,000 different microRNAs. C) from 1,000 to 200,000 microRNAs. D) no microRNA unless the person develops cancer.
Cholera produces severe diarrhea by ____
a. increasing the rate at which cells pump out ions b. decreasing osmosis in small intestinal cells c. blocking ATP production d. increasing water pumps in small intestinal cells e. blocking sodium and potassium channels
What hydroelectric alternative generates electricity without greatly disrupting the river's flow?
A. Hydroelectric dam B. Photovoltaic cell C. Reservoir hydropower D. Run-of-river technique E. Wind generation