Quiz 1-Form12009

Quiz 1-Form12009 - BIL 150 QUIZ 1-FORM 1 Answers FALL 2009...

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BIL 150 QUIZ 1-FORM 1 Answers FALL 2009 1. Which of the following “Big Ideas” unifies all of biology? A. Structure and function are correlated. B. Organisms interact with their environments, exchanging matter and energy C. Continuity of life is based on heritable information in the form of DNA D. Feedback mechanisms regulate biological systems E. Populations evolve over time Questions 2-4 below relate to the following paragraph. Three different dosages (2mg, 4mg, and 6mg) of an experimental drug in a 1ml saline solution are injected into 60 female mice (20 for each dosage) in estrous that are receptive to males to determine whether the drug increases litter size. The twenty females in each dosage group are paired with 20 males. After a 21 day gestation period the number of offspring in each litter are counted for the three groups of females. 2. Which of the following is a suitable "control" for this experiment? A. 20 male mice injected with 2mg of the drug in 1 ml of saline B. 20 male mice injected with 1ml of saline C. 20 female mice in estrous injected with 1 ml of saline (only one that has estrous injected into it; saline=control) D. 20 pregnant female mice injected with 2 mg of the drug in 1ml of saline E. 20 pregnant mice injected with 1 ml of saline
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This note was uploaded on 12/01/2010 for the course BIL 150 taught by Professor Gaines during the Spring '07 term at University of Miami.

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Quiz 1-Form12009 - BIL 150 QUIZ 1-FORM 1 Answers FALL 2009...

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