Why is the protein-first hypothesis not accepted by most scientists?
a. Proteins cannot be catalysts.
b. There is no known mechanism of protein self-replication.
c. Of all of the macromolecules, only DNA can self-replicate.
d. There is no evidence that proteins can store information.
e. Proteins are too complex to have been the first "polymers of life."
ANSWER: b
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Which of the following statements is typically false?
A. DNA is double stranded, whereas RNA is single stranded. B. The process that goes from RNA to protein is called translation. C. The process that goes from DNA to RNA is called transcription. D. DNA contains the same nucleotides as RNA.
Composite transposons contain a central region with genes and repeated sequences at their ends but do not terminate with IS elements
Indicate whether the statement is true or false
Cancer-causing mutations in genes can have different effects on the protein products expressed
a) What type of mutation would be dominant in the development of cancer? Why? b) What type of mutation would be expressed as a recessive trait in the development of cancer? Why? c) Based upon your answers to parts (a) and (b), how would you treat these situations using a gene therapy approach? What will be an ideal response?
What does the Genuine Progress Indicator (GPI) account for that the Gross Domestic Product (GDP) does not?
A. non-market values B. the benefits of ecological services C. environmental costs D. social costs E. All of the above are correct.