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bio practice exam - Bio 101/102 Spring 2008 Practice Exam I...

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Bio 101/102 Spring 2008, Practice Exam I – these are the types of questions I ask. The exam will be 50 multiple choice questions. I will use a couple of exact questions asked below on the actual exam. 1. Which of the following is a scientific conclusion based on knowing that humans and bacteria share a common genetic language (i.e., DNA)? a. bacteria will eventually develop into humans b. humans and bacteria have the same number of genes c. humans and bacteria share a common ancestor d. cells of both humans and bacteria store DNA in a nucleus e. DNA is analogous 2. Which of the following are required for natural selection to occur? a. inheritance b. unequal (non-random) reproductive success c. variation d. overreproduction/ struggle for existence e. all of the above 3. You put your waffles in the toaster oven to warm, take a shower, and return to find them missing. Which of the following is a hypothesis as to why your waffles are missing? a. My waffles are gone b. What’s wrong with the toaster oven? c. My brother Billy stole the waffles d. If I make Billy throw up, I’ll see waffle chunks 4. Natural selection always results in: a. increased variation b. a decrease in the size of a population c. a population that more closely resembles the “best” types d. an increase in the size of the population e. speciation 5. Which is a major piece of evidence that suggests that humans and chimpanzees share a common ancestor? a.
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