CHAPTER 15 THE CHROMOSOMAL BASIS OF INHERITANCE PART 2 Learning objectives Linked Genes 1 Explain how Sturtevant created linkage maps Define a map unit 2 Explain why Mendel did not find linkage between seed color and flower color despite the fact that these genes are on the same chromosome 3 Explain how genetic maps are constructed for genes located far apart on a chromosome 4 Explain the effect of multiple crossovers between loci 5 Explain what additional information cytogenetic maps provide Errors and Exceptions in Chromosomal Inheritance 6 Explain how nondisjunction can lead to aneuploidy 7 Define trisomy triploidy and polyploidy Explain how these major chromosomal changes occur and describe possible consequences 8 Distinguish among deletions duplications inversions and translocations 9 Describe the type of chromosomal alterations responsible for the following human disorders Down syndrome Klinefelter syndrome extra Y trisomy X syndrome Turner syndrome cri du chat syndrome and chronic myelogenous leukemia 10 Define genomic imprinting Describe the evidence that suggests that the Igf2 gene is maternally imprinted 11 Explain why extranuclear genes are not inherited in a Mendelian fashion Learning Objectives for Campbell Reece Biology 8th Edition Pearson Education Inc 1 of 1
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