Transcription of Chapter 4 Pedigree Analysis in Human Genetics
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Chapter 4 Human Heredity by Michael Cummings 2006 Brooks/Cole-Thomson LearningChapter 4 Pedigree Analysis in Human Genetics Chapter 4 Human Heredity by Michael Cummings 2006 Brooks/Cole-Thomson LearningMendelian Inheritance in HumansPigmentation Gene and AlbinismFig. Chapter 4 Human Heredity by Michael Cummings 2006 Brooks/Cole-Thomson LearningTwoGenesFig. Chapter 4 Human Heredity by Michael Cummings 2006 Brooks/Cole-Thomson LearningThe Inheritance of Human TraitsDifficulties Long generation time Data must be obtained fromoffspring produced Experimental matings are notpossible Limited sample size Chapter 4 Human Heredity by Michael Cummings 2006 Brooks/Cole-Thomson LearningPedigree Analysis Pedigree is an orderly presentationof family information First step in studying the inheritanceof traits Important in predicting genetic risk May be incomplete due to difficultiescollecting information Chapter 4 Human Heredity by Michael Cummings 2006 Brooks/Cole-Thomson LearningPedigree Analysis Construct Pedigree using availableinformation Rule out all patterns of inheritancethat are inconsistent with the data May not have enough information toidentify the mode of
ions across the plasma membrane • Reduces fluid in glandular ... Autosomal Recessive Trait •Hemoglobin is an oxygen transport molecule in red blood cells (RBC) •Sickle cell hemoglobin is abnormal and causes RBCs to become crescent or sickle shaped •RBCs are fragile
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