10-151_Exam1b - Bio 151 Spring 2010 Exam 1 25 questions, 3...

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Bio 151 Spring 2010 Exam 1 25 questions, 3 points each, 75 points total Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The ant, Myrmecia pilosula, is found in Australia and is nicknamed the bulldog ant because of its aggressive behavior. It is particularly interesting because it carries all its genetic information in a single pair of chromosomes. In other words, 2n = 2. (Males are haploid and have just one chromosome.) Which of the following figures would most likely represent a correct configuration of chromosomes in a Metaphase I cell of a female? A) B) C) D) E) 2) If a typical somatic cell has 32 chromosomes, how many chromosomes are expected in each gamete of that organism? A) 16 B) 64 C) 46 D) 0 E) 32 B1
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3) Apply the product law to a coin - flip situation. What is the probability that on three flips of a coin, heads will occur on all three flips? A) 1/8 B) 3/16 C) 1/4 D) 1/2 E) insufficient information to answer this question 4) In tigers, a recessive allele causes a white tiger (virtual absence of fur pigmentation). If two phenotypically normal tigers are mated and produce a white offspring, approximately what percentage of their remaining offspring are expected to be white? A) about 66% B) 75% C) about 90% D) 25% E) 50% 5) The Chi - square test involves a statistical comparison between measured (observed) and predicted (expected) values. One generally determines degrees of freedom as A) ten minus the sum of the two categories. B) the
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10-151_Exam1b - Bio 151 Spring 2010 Exam 1 25 questions, 3...

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