Medical Genetics Chapter 8 Genetics of Common Disorders with Complex Inheritance This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
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Medical Genetics Outline Multifactorial inheritance; Qualitative and quantitative traits; Genetic analysis of qualitative disease traits; Determining the relative contributions of genes and environment to complex disease; Genetic analysis of quantitative traits. This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
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Medical Genetics 1.Multifactorial inheritance Multifactorial/complex inheritance result from complex interactions between a number of genetic and environmental factors. o many different genes(major gene,minor gene), many environmental factors. o gene-gene interaction, gene-environment interactions. This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
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Medical Genetics 2.Qualitative and quantitative traits ◆( Qualitative traits:a genetic disease that is either present or absent is referred to as a discrete or qualitative trait;one has the disease or not. Quantitative traits:measurable physiological or biochemical quantities such as height,blood pressure,serum cholesterol concentration,and body mass index(a measure of obesity)that underlie many common and devastating illnesses in the population. This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
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Medical Genetics 2.1 Genetic Analysis of Qualitative Disease Traits Familial aggregation:affected individuals may cluster in families. Concordance and discordance:when two related individuals in a family have the same disease,they are said to be concordant for the disorder.Conversely,when only one member of the pair of relatives is affected and the other is not, the relatives are discordant for the disease. genocopy phenocopy This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
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