a. Why did Fox show that polymerization of amino acids can occur with enzymes?
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b. Why do investigators believe that proteins alone could not form a cell? What property do they lack
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c. By what mechanism would it be possible for RNA to replicate in the first cell?
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d. Why was it necessary for this RNA to have enzymatic properties?
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2. A scientist observes that members of a particular plant species are shorter at the top of a mountain that at the bottom
a. Give an explanation based on natural selection.
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b. The scientist gathers seeds from the plants at the top of the mountain and plants them at the base of the mountain. If your explanation is correct, what will be the appearance of the plants?
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c. Using Figure 27.16, explain these experimental results.
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