Biol1510 Exam 1 sample questions

Biol1510 Exam 1 sample questions - 5.

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5. Which of the following is NOT true of evolution by natural selection?   a. results in evolutionary adaptation of a population b. requires genetic variation  c. involves differential reproductive success  d. is a random process e. works at the level of individual organisms  6. Volcanic rocks may be dated to the end of the Permian mass extinction by what method?  a. carbon-14 dating b. analyzing embedded fossils c. potassium-argon dating d. any of the above e. none of the above 7. Over the last 600 million years, the climate of Earth  a. has alternated between warmer and cooler periods, and is currently in a cool period. b. has alternated between warmer and cooler periods, and is currently in a warm period. c. has alternated between warmer and cooler periods, and is currently near the average. d. has been steady, with only small, brief changes in mean global temperature. e. has warmed steadily to its warmest point today. 8. The initial accumulation of oxygen in the atmosphere was the result of photosynthesis from an organism most like  modern a. cyanobacteria. Name: _______________________________ p. 1 of 10
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Biology 1510 Spring 2008: Exam 1 (version 1) b. algae. c. mosses. d. archaea. e. none of the above. 9. One type of evidence for evolution of oxygen-producing photosynthetic organisms as early as 2.3 billion years ago  comes from:  a. fossils of land plants. b. microfossils showing primitive cells resembling modern bacteria  c. banded iron formations.  d. the Miller-Urey experiment  e. the record of geomagnetic reversals on the ocean floor  10. Which of the following have been synthesized in laboratory experiments studying the origin of life?  a. auto-catalytic RNA molecules that replicate and undergo natural selection b. protobionts that use RNA as the genetic material c. protobionts that use DNA to program protein synthesis  d. proteins that catalyze their own synthesis  e. auto-catalytic DNA molecules that catalyze protein synthesis  11. Radiocarbon dating is based on the following principles: a. The half life of  14 C decreases at a known rate through time. b. 14 C is injected into the upper atmosphere by meteorites. c. 14 C is incorporated into organic matter only during an organism’s lifetime. d. All of the above. Name: _______________________________ p. 2 of 10
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Biology 1510 Spring 2008: Exam 1 (version 1) e. None of the above. 12. The hypothesis that life may have originated near deep-sea hydrothermal vents is attractive because: a. these are reducing environments with abundant hydrogen and methane.  b. thermal and chemical energy is plentiful.  c. these environments are shielded from solar UV radiation.  d. prokaryotes exist that can thrive under these conditions, using the chemical energy to drive their metabolism. 
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This note was uploaded on 11/12/2009 for the course BIO 1510 taught by Professor Unknown during the Fall '07 term at Georgia Institute of Technology.

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Biol1510 Exam 1 sample questions - 5.

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