bio15.docx - QUESTION 1 1 Which offspring would not inherit...

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QUESTION 1 1. Which offspring would not inherit their mother's (maternal) mitochondria? A . son B . daughter C . daughters' daughter D . daughter's son E. son's daughter 1 points QUESTION 2 1. Positive selection on a population confers A . heterozygote advantage. B . increased fitness. C . decreased reproduction. D . increased strength and reproductive success. E. All of the above. 1 points QUESTION 3 1. All of the following are TRUE of vitamin D, EXCEPT A . vitamin D is important for healthy bone growth. B . the need of the body for vitamin D is one factor in the evolution of skin color. C . vitamin D helps the body absorb calcium. D . pregnant women should reduce vitamin D in their diet to avoid birth defects. E. sunlight is important for vitamin D production. 1 points QUESTION 4 1. Which of the following statements about mitochondrial Eve is TRUE? A . Mitochondrial Eve is the ancestor of modern women but not men. B . Mitochondrial Eve represents a small group of unrelated women. C . Mitochondrial Eve was traced through analysis of nuclear DNA. D . Mitochondrial Eve lived about 200,000 years ago. E. Mitochondrial Eve lived in western Asia.
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1 points QUESTION 5 1. Which of the following correctly lists important steps in human evolution in the correct order, from earliest to most recent? A . big brain, upright walking, tool use, control of fire B . upright walking, big brain, control of fire, tool use C . upright walking, tool use, control of fire, big brain D . big brain, upright walking, control of fire, tool use E. upright walking, big brain, tool use, control of fire 1 points QUESTION 6 1. Which of the following describes the migration of humans in order from oldest populations to youngest populations? A . Northeast Europe→Western Europe→Africa→South America→North America B . Africa→Western Europe→Northeast Europe→North America→South America C . Western Europe→Africa→Eastern Europe→North America→South America D . Africa→Northeast Europe→Western Europe→North America→South America E. Africa→Western Europe→South America→North America→Northeast Europe 1 points QUESTION 7 1. Which of the following statements about natural selection is TRUE? A . Natural selection adapts a species to its environment, but it is not the process by which new species evolve. B . Natural selection changes the frequency of alleles in an individual. C . Natural selection acts on phenotypes that are controlled by genes. D . Natural selection is a random process. E. Natural selection operates independently of the environment. 1 points QUESTION 8 1. Less genetic variation is found outside Africa because of A . loss of alleles. B . founder effect. C . increased mutation rate.
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D . genetic drift. E. decreased mutation rate. 1 points QUESTION 9 1. Both vitamin D and folate levels are affected by UV radiation from sunlight.
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