Bio-FP1000_BarnesCrystal_Assessment4-1.pdf - GENETICS LAB...

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GENETICS LAB - CRYSTAL BARNES This is where introductory text sould go about what they need to do with this pdf, like 'You need to upload this PDF into your course as part of your assignment.' Patient Chart Kayla Emily Scenario 1 - Pedigree Analysis Scenario 2 - Karyotype Relationship between 1 and 2 Couple (Kayla's Grandparents) Gender of Fetus Male Relationship between 1 and 5 Mother/Son Chromosomal Abnormalites Yes Relationship between 1 and 10 Grandmother/Grandson Chromosomal Combination Result Down Syndrome Relationship between 6 and 7 Couple (Kayla's Mother and Father) Relationship between 4 and 5 Sister/Brother Relationship between 5 and 8 Uncle/Nephew Relationship between 8 and 10 Brother/Brother Relationship between 1 and 3 Mother-In-Law/Son-In-Law Chances mother is a carrier 50% Chances Kayla is a carrier 50% Chances Kayla passes the syndrome to male child 50% If Kayla is a carrier, what are chances of having an affected child? 25% If Kayla is not a carrier, what are chances of having an affected child? 0% Assessment 1. How did you determine the chances that Kayla's mother is a carrier and the chances that Kayla is a carrier?
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Based on analysis from the pedigree, the mother (6) has a 50% chance of being a carrier of the DMD gene mutation because the grandmother (1) is a known carrier of the gene. Also, Kayla has a male cousin affected with DMD. Therefore, the aunt is a carrier of the gene. And, the mother has no son's which presents difficulty in determining her chance as a carrier. The
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