a. What is your evidence that DNA stores genetic information?
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b. What is your evidence that DNA replicates prior to cell division?
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c. What part of DNA mutates and what evidence in nature shows that DNA mutates?
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2. Considering the functions of RNA:
a. If you supplied an actively metabolizing cell with radioactive uridine, where would you first and then later expect to find the label?
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b. What evidence do you have that mRNA and not rRNA directs the synthesis of a polypeptide?
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c. What physical evidence can you present that ribosomes (rRNA) move along the mRNA?
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3. What experiment would you suggest to support the hypothesis that insulin produced by biotechnology will have fewer side effects than insulin taken from the organs of livestock? Why do you expect your results to support the hypothesis?
4. What experiment would you suggest to support the hypothesis that meat from cattle bioengineered to contain extra growth hormone genes is safe for human consumption? Why do you expect your results to support the hypothesis? Your answer should consider the fact that growth hormone is a protein.
5. What experiment would you suggest to support the hypothesis that plants engineered to contain genes for an insect toxin against insects is safe for human consumption? Why might your results not support the hypothesis?
6. What experiment would you suggest to support the hypothesis that bacteria engineered to clean up a pollutant disappear when the pollutant is gone? What would make them disappear?
