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Q: What technique is best suited to identify whether a particular protein is present in a sample of cell lysate? A Bradford assay B SDS-PAGE C Western Blot D Southern Blot Tags: Experimental Methods |

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Q: A group of researchers would like to separate DNA fragments based on their respective sizes. These researchers should employ a(n): A distillation. B ion-exchange chromatography. C western blot. D southern blot. Tags: Experimental Methods |

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Q: A study is performed where 1000 people who wear seat belts and 1000 people who do not are followed for several years to observe differences in outcomes. This study is an example of a: A observational study. B cohort study. C cross-sectional study. D case-control study. Tags: Experimental Methods |

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Q: Which of the following appropriately approximates the infrared absorption of hydroxyl (-OH) groups in an organic molecule? A 2100 cm-1 B 2800 cm-1 C 3100 cm-1 D 3500 cm-1 Tags: Experimental Methods |

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Q: A southern blot can be used to detect: A DNA fragments. B RNA fragments. C protein samples. D lipid and glucose-based samples. Tags: Experimental Methods |

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Q: A research study is developed to look at the link between alcohol use and lung cancer. A confounding variable that should be considered in this experimental design is: A type of alcohol consumed. B amount of alcohol consumed. C tobacco use. D age of lung cancer diagnosis. Tags: Experimental Methods |

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Q: A study evaluated the effects of socioeconomic status, race, and sex on performance of high school students on a particular standardized test. Which of the following variables from this study would be considered a dependent variable? I. standardized test performance II. socioeconomic status III. race A I only B II and III only C I and III only D I, II and III Tags: Experimental Methods |

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