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14_TestBank_TB - Biology 7e(Campbell Chapter 14 Mendel and...

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Biology, 7e (Campbell) Chapter 14: Mendel and the Gene Idea Chapter Questions 1) Pea plants were particularly well suited for use in Mendel's breeding experiments for all of the following reasons except that A) peas show easily observed variations in a number of characters, such as pea shape and flower color. B) it is possible to completely control matings between different pea plants. C) it is possible to obtain large numbers of progeny from any given cross. D) peas have an unusually long generation time. E) many of the observable characters that vary in pea plants are controlled by single genes. Answer: D Topic: Concept 14.1 Skill: Comprehension 2) A plant with purple flowers is allowed to self-pollinate. Generation after generation, it produces purple flowers. This is an example of A) hybridization. B) incomplete dominance. C) true-breeding. D) the law of segregation. E) polygenetics. Answer: C Topic: Concept 14.1 Skill: Knowledge 3) Which of the following statements about Mendel's breeding experiments is correct ? Topic: Concept 14.1 Skill: Comprehension 4) What is the difference between a monohybrid cross and a dihybrid cross? Topic: Concept 14.1 Skill: Knowledge 1
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5) A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates Topic: Concept 14.1 Skill: Comprehension
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