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Chapter_12_Learning_Objectives (2)

Chapter_12_Learning_Objectives (2) - hemophilia 12.6 Do the...

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Chapter Learning Objectives Chapter 12: Patterns of Inheritance 12.1 How did Gregor Mendel lay the foundation for modern genetics? Define the following terms: true-breeding, hybridization, monohybrid cross, P generation, F 1 generation, and F 2 generation List and explain Mendel’s four hypotheses concerning heredity Distinguish between the following pairs of terms: dominant and recessive; heterozygous and homozygous; genotype and phenotype 12.2 How are single traits inherited? Use a Punnett square to predict the results of a monohybrid cross, stating the phenotypic and genotypic ratios Explain how a testcross can be used to determine if an individual with the dominant phenotype is homozygous or heterozygous 12.5 How is sex determined and how are sex-linked genes inherited? Explain how sex-linkage was discovered in fruit flies by Morgan Describe how sex is genetically determined in humans Explain why sex-linked diseases are more common in human males Describe the inheritance patterns and symptoms of color blindness and
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Unformatted text preview: hemophilia 12.6 Do the Mendelian rules of inheritance apply to all traits? • Give an example of incomplete dominance and explain why it does not support the blending theory of inheritance • Explain how phenotypic expression of the heterozygote differs with complete dominance, incomplete dominance, and codominance • Describe the inheritance of the ABO blood system and explain why the I A and I B alleles are said to be codominant • Describe a simple model for polygenic inheritance and explain why most polygenic characters are described in quantitative terms 12.8 How are human disorders caused by single genes inherited? • Describe the inheritance and expression of albinism, cystic fibrosis, Tay-Sachs disease, and sickle-cell disease • Distinguish between autosomal recessive and autosomal dominant disorders and give examples 12.9 How do errors in chromosome number affect humans? • Describe the cause of Trisomy 21...
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