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Biology 112 Name: _______________________ Quiz: Chapter 5 (Genetics and Inheritance Patterns) True or False. Write T if the statement is true, F if it is false. If false, correct the underlined word. ____ 1. When both alleles for one gene are the same, they are said to be homozygous. __________________ ____ 2. An organism’s phenotype is its genetic makeup. __________________ ____ 3. A pedigree chart is used to trace a characteristic throughout a community. __________________ 4. Sex-linked chromosomes are found on chromosome pair 23. __________________ 5. Sex-linked chromosomal disorders appear more often in females. __________________ ____ ____ Open Answer. Answer in full sentences. 6. Mendel’s work resulted in the creation of three principles of inheritance: the principle of segregation, the principle of dominance, and the principle of independent assortment. Choose two of these principles and explain them. 7. Four genetic concepts help to explain the wide variety of phenotypes: incomplete dominance, codominance, multiple alleles and polygenic traits. Choose two of these concepts and explain them.