Web Quiz #1 - 1. Which of the following statements about...

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1. Which of the following statements about the process of natural selection is incorrect ? A. Natural selection works at the level of biological function and the corresponding biological structures (including genes) that underlie these functions. B. Natural selection is a process that functions only on time scales of evolution, typically thousands of years or more. C. Natural selection only works if there is a diversity of characteristics for any given trait (for example, differences in hair or eye color). D. Natural selection depends on there being some probability that a desirable trait will be passed on to an organism's offspring. E. The concept of natural selection can be applied equally well to the present day and to ancient times (> 3.5 billion years ago) before life as we know it existed on earth. 2. Which one of the following is NOT a valid reason for arguing for a central role of RNA in hypothetical early life forms on earth? A. It is able to act as a catalyst of important reactions. B. It is known to interact with amino acids, the essential building blocks of proteins. C. Short strands of RNA have been found to be able to act as templates for their own replication.
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This note was uploaded on 10/19/2008 for the course BIO G 1101 taught by Professor Gilbert during the Fall '07 term at Cornell University (Engineering School).

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Web Quiz #1 - 1. Which of the following statements about...

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