There are a number of different types of human pedigrees that you may encounter, however, there...

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There are a number of different types of human pedigrees that you may encounter, however, there are only a few different modes of inheritance with which you will need to be familiar. The following pedigrees show you different examples of human traits that can be traced through generations. See if you can identify the modes of inheritance, and answer any questions directly related to each pedigree. +While you are working on this, keep the following clues in mind: Clues for Autosomal Inheritance Dominant Recessive Human Pedigree Analysis Problem Sheet individual expressing trait has 2 normal parents two affected parents can not have an unaffected child Recessive no father-to-son transmission predominantly males affected • trait may skip generations Clues for Sex-linked Inheritance • every affected person has at least one affected parent • each generation will have affected individuals 3) Below is a pedigree for an inherited skin disease. Provide the genotypes of each of the individuals marked with lower case letters. d There are a number of different types of human pedigrees that you may encounter, however, there are only a few different modes of inheritance with which you will need to be familiar. The following pedigrees show you different examples of human traits that can be traced through generations. See if you can identify the modes of inheritance, and answer any questions directly related to each pedigree. +While you are working on this, keep the following clues in mind: Clues for Autosomal Inheritance Dominant Recessive Human Pedigree Analysis Problem Sheet individual expressing trait has 2 normal parents two affected parents can not have an unaffected child Recessive no father-to-son transmission predominantly males affected • trait may skip generations Clues for Sex-linked Inheritance • every affected person has at least one affected parent • each generation will have affected individuals 3) Below is a pedigree for an inherited skin disease. Provide the genotypes of each of the individuals marked with lower case letters. d

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