chapter 14

chapter 14 - chapter 14 Multiple Choice Identify the letter...

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chapter 14 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel's breeding experiments for all of the following reas- ons 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. ____ 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. ____ 3. What is the difference between a monohybrid cross and a dihybrid cross? a. A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents. b. A monohybrid cross produces a single progeny, whereas a dihybrid cross produces two progeny. c. A monohybrid cross involves organisms that are heterozygous for a single character, whereas a dihybrid cross involves organisms that are heterozygous for two characters. d. A monohybrid cross is performed only once, whereas a dihybrid cross is performed twice. e. A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio. ____ 4.
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This note was uploaded on 06/07/2009 for the course BIO 5 taught by Professor Martins-green during the Spring '09 term at UC Riverside.

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chapter 14 - chapter 14 Multiple Choice Identify the letter...

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